diff --git a/rc/filetype/cabal.kak b/rc/filetype/cabal.kak
index a5c043e9..8f7a6975 100644
--- a/rc/filetype/cabal.kak
+++ b/rc/filetype/cabal.kak
@@ -52,8 +52,8 @@ define-command -hidden cabal-trim-indent %{
 
 define-command -hidden cabal-indent-on-new-line %[
     evaluate-commands -draft -itersel %[
-        # copy '#' comment prefix and following white spaces
-        try %[ execute-keys -draft k <a-x> s ^\h*\K#\h* <ret> y gh j P ]
+        # copy '--' comment prefix and following white spaces
+        try %[ execute-keys -draft k <a-x> s ^\h*\K--\h* <ret> y gh j P ]
         # preserve previous line indent
         try %[ execute-keys -draft <semicolon> K <a-&> ]
         # filter previous line