1 files changed, 1 insertions, 0 deletions
diff --git a/Libraries/LibJS/AST.h b/Libraries/LibJS/AST.h
index 58c1bbe8ca..156d69395b 100644
--- a/Libraries/LibJS/AST.h
+++ b/Libraries/LibJS/AST.h
@@ -567,6 +567,7 @@ enum class AssignmentOp {
     SubtractionAssignment,
     MultiplicationAssignment,
     DivisionAssignment,
+    LeftShiftAssignment,
 };
 
 class AssignmentExpression : public Expression {