diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/palette.js b/packages/node_modules/@node-red/editor-client/src/js/ui/palette.js
index 09f4758f1..513e8dcf8 100755
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/palette.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/palette.js
@@ -208,7 +208,7 @@ RED.palette = (function() {
     }
 
     function escapeCategory(category) {
-        return category.replace(/[ /.]/g,"_");
+        return category.replace(/[\x00-\x2c\x2e-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]/g,"_");
     }
     function addNodeType(nt,def) {
         if (getPaletteNode(nt).length) {