diff --git a/.vimrc b/.vimrc
--- a/.vimrc
+++ b/.vimrc
@@ -255,6 +255,8 @@ set go-=T go-=m go-=t "no toolbar, menu,
 augroup vimrc
   autocmd!
 
+  autocmd WinLeave * stopinsert
+
   " set and load a session based on servername
   autocmd VimEnter  * call vimrc#AutoSessionConfig()