diff --git a/src/blocks/scratch3_operators.js b/src/blocks/scratch3_operators.js
index 2feda2dac..c6ee70bef 100644
--- a/src/blocks/scratch3_operators.js
+++ b/src/blocks/scratch3_operators.js
@@ -85,7 +85,7 @@ class Scratch3OperatorsBlocks {
         if (low === high) return low;
         // If both arguments are ints, truncate the result to an int.
         if (Cast.isInt(args.FROM) && Cast.isInt(args.TO)) {
-            return low + parseInt(Math.random() * ((high + 1) - low), 10);
+            return low + Math.floor(Math.random() * ((high + 1) - low));
         }
         return (Math.random() * (high - low)) + low;
     }
@@ -107,7 +107,7 @@ class Scratch3OperatorsBlocks {
     length (args) {
         return Cast.toString(args.STRING).length;
     }
-    
+
     contains (args) {
         const format = function (string) {
             return Cast.toString(string).toLowerCase();