diff --git a/lua/git/diff.lua b/lua/git/diff.lua
index 0369907..deb933c 100644
--- a/lua/git/diff.lua
+++ b/lua/git/diff.lua
@@ -107,7 +107,7 @@ local function uri_split(opts, buf, rev)
     end
 
     if rev.stage == 1 then
-        util.error("gD on merge base is ambiguous, use :Gdiffsplit <rev>")
+        util.warning("gD on merge base is ambiguous, use :Gdiffsplit <rev>")
         return
     end