diff --git a/share/completions/yum.fish b/share/completions/yum.fish
index 35f878d0c..7db604b02 100644
--- a/share/completions/yum.fish
+++ b/share/completions/yum.fish
@@ -7,7 +7,7 @@
 # Test if completing using package names is appropriate
 function __fish_yum_package_ok
 	for i in (commandline -poc)
-		if contains $i update upgrade remove erase install reinstall
+		if contains -- $i update upgrade remove erase install reinstall
 			return 0
 		end
 	end