diff --git a/packages/node_modules/@node-red/nodes/core/function/10-function.html b/packages/node_modules/@node-red/nodes/core/function/10-function.html
index 48e46da13..6e59aa1e2 100644
--- a/packages/node_modules/@node-red/nodes/core/function/10-function.html
+++ b/packages/node_modules/@node-red/nodes/core/function/10-function.html
@@ -294,7 +294,7 @@
                     if (val === "_custom_") {
                         val = $(this).val();
                     }
-                    var varName = val.trim().replace(/^@/,"").replace(/@.*$/,"").replace(/[-_/].?/g, function(v) { return v[1]?v[1].toUpperCase():"" });
+                    var varName = val.trim().replace(/^@/,"").replace(/@.*$/,"").replace(/[-_/\.].?/g, function(v) { return v[1]?v[1].toUpperCase():"" });
                     fvar.val(varName);
                     fvar.trigger("change");