diff --git a/qcd_function b/qcd_function
index 0b8c0e6..5c2ec4c 100644
--- a/qcd_function
+++ b/qcd_function
@@ -343,7 +343,7 @@ function foldermenu_prompt {
 
 function _tools-update {
     # update self
-    [[ -z "$TOOLSPATH" ]] || return
+    [[ -z "$TOOLSPATH" ]] && return
     [[ -w "$TOOLSPATH" ]] || return
     "$TOOLSPATH"/rc -u
 }