diff --git a/src/litegraph.js b/src/litegraph.js
index d16cebd7c..a70f4733e 100644
--- a/src/litegraph.js
+++ b/src/litegraph.js
@@ -9990,7 +9990,14 @@ LGraphNode.prototype.executeAction = function(action)
 						var delta = x < 40 ? -1 : x > widget_width - 40 ? 1 : 0;
 						if (event.click_time < 200 && delta == 0) {
 							this.prompt("Value",w.value,function(v) {
-                                inner_value_change(this, this.value);
+									// check if v is a valid equation or a number
+									  if (/^[0-9+\-*/()\s]+$/.test(v)) {
+										try {//solve the equation if possible
+									    		v = eval(v);
+										} catch (e) { }
+									}	
+									this.value = Number(v);
+									inner_value_change(this, this.value);
 								}.bind(w),
 								event);
 						}