diff --git a/tools/zshlibs_update b/tools/zshlibs_update
index d486790..4a14747 100644
--- a/tools/zshlibs_update
+++ b/tools/zshlibs_update
@@ -13,7 +13,7 @@ function zshlibs_update()
     zshlibs_log zlibs_update "update done"
     popd 2>&1 > /dev/null
   else
-    echo "\$zshlibs_install not set!"
+    echo '$zshlibs_install not set!'
     return 1
     zlibs_install
   fi