diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
index 0b324bc54c32e3..a25dfb7434cf0c 100644
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -946,10 +946,10 @@ class Sema final {
   class DelayedDiagnostics {
     /// The current pool of diagnostics into which delayed
     /// diagnostics should go.
-    sema::DelayedDiagnosticPool *CurPool;
+    sema::DelayedDiagnosticPool *CurPool = nullptr;
 
   public:
-    DelayedDiagnostics() : CurPool(nullptr) {}
+    DelayedDiagnostics() = default;
 
     /// Adds a delayed diagnostic.
     void add(const sema::DelayedDiagnostic &diag); // in DelayedDiagnostic.h