diff --git a/src/MemoryX.h b/src/MemoryX.h
index c9922d210..78b73dbd5 100644
--- a/src/MemoryX.h
+++ b/src/MemoryX.h
@@ -485,15 +485,21 @@ static char*THIS_FILE = __FILE__;
 // to shared_ptr if we can't (because containers know how to copy elements only,
 // not move them).
 #ifdef __AUDACITY_OLD_STD__
-
 template<typename T> using movable_ptr = std::shared_ptr<T>;
-#define make_movable std::make_shared
-
 #else
-
 template<typename T> using movable_ptr = std::unique_ptr<T>;
-#define make_movable std::make_unique
-
 #endif
 
+template<typename T, typename... Args>
+inline movable_ptr<T> make_movable(Args&&... args)
+{
+   return std::
+#ifdef __AUDACITY_OLD_STD__
+      make_shared
+#else
+      make_unique
+#endif
+      <T>(std::forward<Args>(args)...);
+}
+
 #endif // __AUDACITY_MEMORY_X_H__