diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 41b7ff55d0de..13eb9acb0e5e 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -16663,7 +16663,7 @@ void Sema::DiagnoseStaticAssertDetails(const Expr *E) {
       return;
 
     struct {
-      const Expr *Expr;
+      const clang::Expr *Expr;
       Expr::EvalResult Result;
       SmallString<12> ValueString;
       bool Print;