diff --git a/autoload/neosnippet/init.vim b/autoload/neosnippet/init.vim
index 2618784..b12601c 100644
--- a/autoload/neosnippet/init.vim
+++ b/autoload/neosnippet/init.vim
@@ -45,7 +45,7 @@ function! s:initialize_script_variables() "{{{
   " Set runtime dir.
   let runtime_dir = neosnippet#variables#runtime_dir()
   let runtime_dir += split(globpath(&runtimepath, 'neosnippets'), '\n')
-  if empty(runtime_dir) && !g:neosnippet#disable_runtime_snippets
+  if empty(runtime_dir) && empty(g:neosnippet#disable_runtime_snippets)
     call neosnippet#util#print_error(
           \ 'neosnippet default snippets cannot be loaded.')
     call neosnippet#util#print_error(