diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 5e2d0495..9364bf84 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2465,6 +2465,7 @@ VimL:
   - .vim
   filenames:
   - .vimrc
+  - _vimrc
   - vimrc
   - gvimrc
 
diff --git a/samples/VimL/filenames/_vimrc b/samples/VimL/filenames/_vimrc
new file mode 100644
index 00000000..2e9f626c
--- /dev/null
+++ b/samples/VimL/filenames/_vimrc
@@ -0,0 +1,8 @@
+set nocompatible
+set ignorecase
+set incsearch
+set smartcase
+set showmatch
+set showcmd
+
+syntax on