diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 5dc1f9dfb10ff..f45e8624a7741 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -75,7 +75,7 @@ template <class Emitter> class OptionScope final {
 
 template <class Emitter>
 bool ByteCodeExprGen<Emitter>::VisitCastExpr(const CastExpr *CE) {
-  auto *SubExpr = CE->getSubExpr();
+  const Expr *SubExpr = CE->getSubExpr();
   switch (CE->getCastKind()) {
 
   case CK_LValueToRValue: {