diff --git a/plugin/easy_align.vim b/plugin/easy_align.vim
index 30af664..dc5092e 100644
--- a/plugin/easy_align.vim
+++ b/plugin/easy_align.vim
@@ -75,6 +75,12 @@ function! s:set_repeat()
 endfunction
 
 function! s:generic_easy_align_op(type, vmode, live)
+  if !&modifiable
+    if a:vmode
+      normal! gv
+    endif
+    return
+  endif
   let sel_save = &selection
   let &selection = "inclusive"
 
diff --git a/test/extra.vader b/test/extra.vader
new file mode 100644
index 0000000..acaec97
--- /dev/null
+++ b/test/extra.vader
@@ -0,0 +1,13 @@
+Include: include/setup.vader
+
+Before:
+  set nomodifiable
+After:
+  set modifiable
+  AssertEqual "hello\nworld\n", @"
+Given:
+  hello
+  world
+Do (#43 Do nothing when nomodifiable):
+  vip\<enter>\<enter>\<enter>y
+
diff --git a/test/include/setup.vader b/test/include/setup.vader
index ef1b919..2e98af8 100644
--- a/test/include/setup.vader
+++ b/test/include/setup.vader
@@ -31,3 +31,8 @@ Execute (Clean up test environment):
   vmap <leader>.       <Plug>(EasyAlignRepeat)
 
   silent! call plug#load('vim-easy-align')
+
+Before:
+After:
+Given:
+