diff --git a/src/corelib/tools/qsharedpointer_impl.h b/src/corelib/tools/qsharedpointer_impl.h
index 8cccc83e9d..9e6b48a97d 100644
--- a/src/corelib/tools/qsharedpointer_impl.h
+++ b/src/corelib/tools/qsharedpointer_impl.h
@@ -247,6 +247,7 @@ namespace QtSharedPointer {
             ExternalRefCountWithContiguousData *that =
                     static_cast<ExternalRefCountWithContiguousData *>(self);
             that->data.~T();
+            Q_UNUSED(that); // MSVC warns if T has a trivial destructor
         }
         static void safetyCheckDeleter(ExternalRefCountData *self)
         {