diff --git a/asm.js b/asm.js
index 031ec44..6c5d0f8 100644
--- a/asm.js
+++ b/asm.js
@@ -1136,10 +1136,10 @@ export class Assembler {
     }
 
     le(value, count) {
-        let bytes = []
+        const bytes = []
         while (value != 0) {
             bytes.push(value & 0xff);
-            value >>= 8;
+            value >>>= 8;
         }
         if (count != undefined) {
             while (bytes.length < count)