diff --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
index afc8175..5e445b6 100644
--- a/clang/lib/Serialization/ASTWriterStmt.cpp
+++ b/clang/lib/Serialization/ASTWriterStmt.cpp
@@ -772,6 +772,15 @@
   Code = serialization::EXPR_ARRAY_SUBSCRIPT;
 }
 
+void ASTStmtWriter::VisitMatrixSubscriptExpr(MatrixSubscriptExpr *E) {
+  VisitExpr(E);
+  Record.AddStmt(E->getBase());
+  Record.AddStmt(E->getRowIdx());
+  Record.AddStmt(E->getColumnIdx());
+  Record.AddSourceLocation(E->getRBracketLoc());
+  Code = serialization::EXPR_ARRAY_SUBSCRIPT;
+}
+
 void ASTStmtWriter::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
   VisitExpr(E);
   Record.AddStmt(E->getBase());