diff --git a/src/nodes/math.js b/src/nodes/math.js
index 93a4b9053..66fff8355 100755
--- a/src/nodes/math.js
+++ b/src/nodes/math.js
@@ -3,7 +3,7 @@
 
     //Converter
     function Converter() {
-        this.addInput("in", "*");
+        this.addInput("in", "");
 	this.addOutput("out");
         this.size = [80, 30];
     }