diff --git a/assembler.js b/assembler.js
index 314dcc9..13a642c 100644
--- a/assembler.js
+++ b/assembler.js
@@ -1849,7 +1849,7 @@ function SimulatorWidget(node) {
       codeLen = 0;
       for (var i = 0; i < lines.length; i++) {
         if (!assembleLine(lines[i], i)) {
-          codeAssembleddOK = false;
+          codeAssembledOK = false;
           break;
         }
       }