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 49d53f548..9202d96ba 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
@@ -41,7 +41,7 @@
         oneditprepare: function() {
             var that = this;
             $( "#node-input-outputs" ).spinner({
-                min:1,
+                min:0,
                 change: function(event, ui) {
                     var value = this.value;
                     if (!value.match(/^\d+$/)) { value = 1;  }