diff --git a/autoload/neosnippet/handlers.vim b/autoload/neosnippet/handlers.vim
index 507e732..ef0c72d 100644
--- a/autoload/neosnippet/handlers.vim
+++ b/autoload/neosnippet/handlers.vim
@@ -107,7 +107,7 @@ function! neosnippet#handlers#_get_in_paren(str) abort "{{{
         continue
       endif
     elseif c == ')'
-      if level == 1
+      if level == 1 && s != ''
         return s
       else
         let level -= 1
diff --git a/test/functions.vim b/test/functions.vim
index 9ebf8b8..29797aa 100644
--- a/test/functions.vim
+++ b/test/functions.vim
@@ -2,15 +2,26 @@ let s:suite = themis#suite('toml')
 let s:assert = themis#helper('assert')
 
 function! s:suite.get_in_paren()
-  call s:assert.equals(neosnippet#handlers#_get_in_paren('(foobar)'),
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ '(foobar)'),
         \ 'foobar')
-  call s:assert.equals(neosnippet#handlers#_get_in_paren('(foobar, baz)'),
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ '(foobar, baz)'),
         \ 'foobar, baz')
-  call s:assert.equals(neosnippet#handlers#_get_in_paren('(foobar, (baz))'),
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ '(foobar, (baz))'),
         \ 'foobar, (baz)')
-  call s:assert.equals(neosnippet#handlers#_get_in_paren('foobar('),
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ 'foobar('),
         \ '')
-  call s:assert.equals(neosnippet#handlers#_get_in_paren('foobar(fname)'),
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ 'foobar()'),
+        \ '')
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ 'foobar(fname)'),
         \ 'fname')
+  call s:assert.equals(neosnippet#handlers#_get_in_paren(
+        \ 'wait()    wait(long, int)'),
+        \ 'long, int')
 endfunction