diff --git a/src/standard/effectBuilder.html b/src/standard/effectBuilder.html
index be4a3b2ebf..26f5060ddb 100644
--- a/src/standard/effectBuilder.html
+++ b/src/standard/effectBuilder.html
@@ -169,7 +169,7 @@
     // method expressions are of the form: `name([arg1, arg2, .... argn])`
     _parseMethod: function(expression) {
       // tries to match valid javascript property names
-      var m = expression.match(/([a-zA-Z_$][0-9a-zA-Z_$]*)\((.*)\)/);
+      var m = expression.match(/([^\s]+)\((.*)\)/);
       if (m) {
         var sig = { method: m[1], static: true };
         if (m[2].trim()) {