diff --git a/src/nvim/client.rs b/src/nvim/client.rs
index cbd8150..a70b98b 100644
--- a/src/nvim/client.rs
+++ b/src/nvim/client.rs
@@ -2,7 +2,8 @@ use std::ops::{Deref, DerefMut};
 use std::cell::{Cell, RefCell, RefMut};
 use std::sync::{Arc, Mutex, MutexGuard};
 
-use neovim_lib::Neovim;
+use super::ErrorReport;
+use neovim_lib::{Neovim, NeovimApi};
 
 #[derive(Clone, Copy, PartialEq)]
 enum NeovimClientState {
@@ -31,6 +32,17 @@ impl<'a> NeovimRef<'a> {
             None
         }
     }
+
+    pub fn non_blocked(mut self) -> Option<Self> {
+        self.get_mode().ok_and_report().and_then(|mode| {
+            mode.iter()
+                .find(|kv| {
+                    kv.0.as_str().map(|key| key == "blocking").unwrap_or(false)
+                })
+                .map(|kv| kv.1.as_bool().unwrap_or(false))
+                .and_then(|block| if block { None } else { Some(self) })
+        })
+    }
 }
 
 impl<'a> Deref for NeovimRef<'a> {
diff --git a/src/nvim/ext.rs b/src/nvim/ext.rs
index 9a69507..8dc7283 100644
--- a/src/nvim/ext.rs
+++ b/src/nvim/ext.rs
@@ -1,42 +1,23 @@
 
 use std::result;
-use super::client::NeovimRef;
 
-use neovim_lib::{NeovimApi, CallError};
+use neovim_lib::CallError;
 
 pub trait ErrorReport<T> {
-    fn report_err(&self, nvim: &mut NeovimApi);
+    fn report_err(&self);
 
-    fn ok_and_report(self, nvim: &mut NeovimApi) -> Option<T>;
+    fn ok_and_report(self) -> Option<T>;
 }
 
 impl<T> ErrorReport<T> for result::Result<T, CallError> {
-    fn report_err(&self, _: &mut NeovimApi) {
+    fn report_err(&self) {
         if let Err(ref err) = *self {
             error!("{}", err);
-            //nvim.report_error(&err_msg).expect("Error report error :)");
         }
     }
 
-    fn ok_and_report(self, nvim: &mut NeovimApi) -> Option<T> {
-        self.report_err(nvim);
+    fn ok_and_report(self) -> Option<T> {
+        self.report_err();
         self.ok()
     }
 }
-
-pub trait NeovimExt: Sized {
-    fn non_blocked(self) -> Option<Self>;
-}
-
-impl <'a>NeovimExt for NeovimRef<'a> {
-    fn non_blocked(mut self) -> Option<Self> {
-        self.get_mode().ok_and_report(&mut *self).and_then(|mode| {
-            mode.iter()
-                .find(|kv| {
-                    kv.0.as_str().map(|key| key == "blocking").unwrap_or(false)
-                })
-                .map(|kv| kv.1.as_bool().unwrap_or(false))
-                .and_then(|block| if block { None } else { Some(self) })
-        })
-    }
-}
diff --git a/src/nvim/mod.rs b/src/nvim/mod.rs
index 3f4035a..6873e1d 100644
--- a/src/nvim/mod.rs
+++ b/src/nvim/mod.rs
@@ -10,7 +10,7 @@ pub use self::redraw_handler::{RedrawEvents, GuiApi};
 pub use self::repaint_mode::RepaintMode;
 pub use self::client::{NeovimClient, NeovimClientAsync, NeovimRef};
 pub use self::mode_info::{ModeInfo, CursorShape};
-pub use self::ext::{ErrorReport, NeovimExt};
+pub use self::ext::ErrorReport;
 
 use std::error;
 use std::fmt;
diff --git a/src/plug_manager/vim_plug.rs b/src/plug_manager/vim_plug.rs
index 45034e4..e30e5b0 100644
--- a/src/plug_manager/vim_plug.rs
+++ b/src/plug_manager/vim_plug.rs
@@ -70,7 +70,7 @@ impl Manager {
         if let Some(mut nvim) = self.nvim() {
             let loaded_plug = nvim.eval("exists('g:loaded_plug')");
             loaded_plug
-                .ok_and_report(&mut *nvim)
+                .ok_and_report()
                 .and_then(|loaded_plug| loaded_plug.as_i64())
                 .map_or(false, |loaded_plug| if loaded_plug > 0 {
                     true
@@ -84,9 +84,7 @@ impl Manager {
 
     pub fn reload(&self, path: &str) {
         if let Some(mut nvim) = self.nvim() {
-            nvim.command(&format!("source {}", path)).report_err(
-                &mut *nvim,
-            );
+            nvim.command(&format!("source {}", path)).report_err();
         }
     }
 }
diff --git a/src/popup_menu.rs b/src/popup_menu.rs
index fdb7224..1dec3fa 100644
--- a/src/popup_menu.rs
+++ b/src/popup_menu.rs
@@ -286,7 +286,7 @@ fn tree_button_press(tree: &gtk::TreeView, ev: &EventButton, nvim: &mut Neovim)
         }
         apply_command.push_str("<C-y>");
 
-        nvim.input(&apply_command).report_err(nvim);
+        nvim.input(&apply_command).report_err();
     }
 
     Inhibit(false)
diff --git a/src/project.rs b/src/project.rs
index 9d554bb..8ce293e 100644
--- a/src/project.rs
+++ b/src/project.rs
@@ -394,7 +394,7 @@ fn list_old_files(nvim: &mut Neovim) -> Vec<String> {
             }
         }
         err @ Err(_) => {
-            err.report_err(nvim);
+            err.report_err();
             vec![]
         }
     }
@@ -427,7 +427,7 @@ impl EntryStore {
                     println!("Error get current directory");
                 }
             }
-            err @ Err(_) => err.report_err(nvim),
+            err @ Err(_) => err.report_err(),
         }
 
         let old_files = list_old_files(nvim);
diff --git a/src/shell.rs b/src/shell.rs
index 7d6f09a..13e0081 100644
--- a/src/shell.rs
+++ b/src/shell.rs
@@ -21,7 +21,7 @@ use neovim_lib::neovim_api::Tabpage;
 use settings::{Settings, FontSource};
 use ui_model::{UiModel, Attrs, ModelRect};
 use color::{ColorModel, Color, COLOR_BLACK, COLOR_WHITE, COLOR_RED};
-use nvim::{self, RedrawEvents, GuiApi, RepaintMode, ErrorReport, NeovimExt, NeovimClient,
+use nvim::{self, RedrawEvents, GuiApi, RepaintMode, ErrorReport, NeovimClient,
            NeovimRef, NeovimClientAsync};
 use input;
 use input::keyval_to_input_string;
@@ -122,7 +122,7 @@ impl State {
     ///
     /// Note that this call also do neovim api call get_mode
     pub fn nvim_non_blocked(&self) -> Option<NeovimRef> {
-        self.nvim().and_then(NeovimExt::non_blocked)
+        self.nvim().and_then(NeovimRef::non_blocked)
     }
 
     pub fn nvim(&self) -> Option<NeovimRef> {
@@ -177,20 +177,20 @@ impl State {
 
     pub fn open_file(&self, path: &str) {
         if let Some(mut nvim) = self.nvim() {
-            nvim.command(&format!("e {}", path)).report_err(&mut *nvim);
+            nvim.command(&format!("e {}", path)).report_err();
         }
     }
 
     pub fn cd(&self, path: &str) {
         if let Some(mut nvim) = self.nvim() {
-            nvim.command(&format!("cd {}", path)).report_err(&mut *nvim);
+            nvim.command(&format!("cd {}", path)).report_err();
         }
     }
 
     fn close_popup_menu(&self) {
         if self.popup_menu.borrow().is_open() {
             if let Some(mut nvim) = self.nvim() {
-                nvim.input("<Esc>").report_err(&mut *nvim);
+                nvim.input("<Esc>").report_err();
             }
         }
     }
@@ -298,7 +298,7 @@ impl State {
             gtk::timeout_add(250, move || {
                 resize_state.set(ResizeState::NvimResizeRequest(columns, rows));
 
-                if let Some(mut nvim) = nvim.nvim() {
+                if let Some(mut nvim) = nvim.nvim().and_then(NeovimRef::non_blocked) {
                     if let Err(err) = nvim.ui_try_resize(columns as u64, rows as u64) {
                         error!("Error trying resize nvim {}", err);
                     }
@@ -341,10 +341,10 @@ impl State {
         if let Some(mut nvim) = nvim {
             if self.mode.is(&mode::NvimMode::Insert) || self.mode.is(&mode::NvimMode::Normal) {
                 let paste_code = format!("normal! \"{}P", clipboard);
-                nvim.command(&paste_code).report_err(&mut *nvim);
+                nvim.command(&paste_code).report_err();
             } else {
                 let paste_code = format!("<C-r>{}", clipboard);
-                nvim.input(&paste_code).report_err(&mut *nvim);
+                nvim.input(&paste_code).report_err();
             };
 
         }
@@ -583,7 +583,7 @@ impl Shell {
 
         let nvim = state.nvim();
         if let Some(mut nvim) = nvim {
-            nvim.command(":wa").report_err(&mut *nvim);
+            nvim.command(":wa").report_err();
         }
     }
 
@@ -615,7 +615,7 @@ impl Deref for Shell {
 fn gtk_focus_in(state: &mut State) -> Inhibit {
     if let Some(mut nvim) = state.nvim_non_blocked() {
         nvim.command("if exists('#FocusGained') | doautocmd FocusGained | endif")
-            .report_err(&mut *nvim);
+            .report_err();
     }
 
     state.im_context.focus_in();
@@ -628,7 +628,7 @@ fn gtk_focus_in(state: &mut State) -> Inhibit {
 fn gtk_focus_out(state: &mut State) -> Inhibit {
     if let Some(mut nvim) = state.nvim_non_blocked() {
         nvim.command("if exists('#FocusLost') | doautocmd FocusLost | endif")
-            .report_err(&mut *nvim);
+            .report_err();
     }
 
     state.im_context.focus_out();
diff --git a/src/tabline.rs b/src/tabline.rs
index b6c58af..49ead25 100644
--- a/src/tabline.rs
+++ b/src/tabline.rs
@@ -34,7 +34,7 @@ impl State {
         let target = &self.data[idx as usize];
         if Some(target) != self.selected.as_ref() {
             if let Some(mut nvim) = self.nvim.as_ref().unwrap().nvim() {
-                nvim.set_current_tabpage(target).report_err(&mut *nvim);
+                nvim.set_current_tabpage(target).report_err();
             }
         }
     }
diff --git a/src/theme.rs b/src/theme.rs
index 637a9f9..92c7d92 100644
--- a/src/theme.rs
+++ b/src/theme.rs
@@ -55,7 +55,7 @@ fn get_hl_color(map: &HashMap<&str, &Value>, color_name: &str) -> Option<Color>
 
 fn get_hl_colors(nvim: &mut Neovim, hl: &str) -> (Option<Color>, Option<Color>) {
     nvim.get_hl_by_name(hl, true)
-        .ok_and_report(nvim)
+        .ok_and_report()
         .and_then(|m| if let Some(m) = m.to_attrs_map_report() {
             Some((
                 get_hl_color(&m, "background"),