diff --git a/modules/git/repo_compare.go b/modules/git/repo_compare.go
index 3c7af73000..8a5972a02f 100644
--- a/modules/git/repo_compare.go
+++ b/modules/git/repo_compare.go
@@ -40,7 +40,7 @@ func (repo *Repository) GetMergeBase(tmpRemote, base, head string) (string, stri
 	if tmpRemote != "origin" {
 		tmpBaseName := RemotePrefix + tmpRemote + "/tmp_" + base
 		// Fetch commit into a temporary branch in order to be able to handle commits and tags
-		_, _, err := NewCommand(repo.Ctx, "fetch", tmpRemote, base+":"+tmpBaseName).RunStdString(&RunOpts{Dir: repo.Path})
+		_, _, err := NewCommand(repo.Ctx, "fetch", "--no-tags", tmpRemote, "--", base+":"+tmpBaseName).RunStdString(&RunOpts{Dir: repo.Path})
 		if err == nil {
 			base = tmpBaseName
 		}