diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index 3a5b5d6d7c..3f793ffcfe 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -5536,7 +5536,7 @@ Parser<ParseHandler>::forHeadStart(YieldHandling yieldHandling,
     //
     // See ES6 13.7.
     if (isForOf && letIsIdentifier) {
-        reportWithNode(ParseError, false, *forInitialPart, JSMSG_LET_STARTING_FOROF_LHS);
+        errorAt(exprOffset, JSMSG_LET_STARTING_FOROF_LHS);
         return false;
     }