diff --git a/share/config_interactive.fish.in b/share/config_interactive.fish.in
index 74da5b8ed..4d40381cb 100644
--- a/share/config_interactive.fish.in
+++ b/share/config_interactive.fish.in
@@ -112,9 +112,6 @@ function set_default -d "Set an universal variable, unless it has already been s
 	if not set -q $argv[1]
 		set -U -- $argv	
 	end
-	if not set -q $argv[1]
-		set -g -- $argv	
-	end
 end
 
 # Regular syntax highlighting colors