diff --git a/src/js/rulesAssistantOptions.js b/src/js/rulesAssistantOptions.js
index 1b8a22c2c43d716776f98bd3a54050a919083835..e476f2814d6f35b13dc802f3136ba18bdcb0c8f7 100644
--- a/src/js/rulesAssistantOptions.js
+++ b/src/js/rulesAssistantOptions.js
@@ -269,17 +269,15 @@ window.rulesAssistantOptions = (function() {
 
 	class NumberRange extends EditorWithShortcuts {
 		constructor(prefix, data = [], min, max, spinbox = false) {
-			super(prefix, data, spinbox);
-			this.min = min;
-			this.max = max;
+			super(prefix, data, spinbox, min, max);
 			this.nullValue = data.length ? data[0][1] : null;
 		}
 
 		createEditor(min, max) {
 			let res = document.createElement("input");
 			res.setAttribute("type", "number");
-			res.setAttribute("min", this.min);
-			res.setAttribute("max", this.max);
+			res.setAttribute("min", min);
+			res.setAttribute("max", max);
 			res.classList.add("rajs-value"); //
 			res.onblur = () => {
 				this.inputEdited();