diff --git a/lib/functions.zsh b/lib/functions.zsh
index f3065378..2bc6f035 100644
--- a/lib/functions.zsh
+++ b/lib/functions.zsh
@@ -52,8 +52,8 @@ function open_command() {
 #    1 if it does not exist
 #
 function alias_value() {
-    alias "$1" | sed "s/^$1='\(.*\)'$/\1/"
-    test $(alias "$1")
+	local val=$(alias "$1")
+	test -n "$val" && echo "${val//^$1='\(.*\)'/\1/}"
 }
 
 #