diff --git a/SDL2pp/Mixer.hh b/SDL2pp/Mixer.hh
index 44883dc..d6e7c71 100644
--- a/SDL2pp/Mixer.hh
+++ b/SDL2pp/Mixer.hh
@@ -23,6 +23,7 @@
 #define SDL2PP_MIXER_HH
 
 #include <functional>
+#include <memory>
 
 #include <SDL2/SDL_stdinc.h>