diff --git a/src/Sound.cpp b/src/Sound.cpp
index fe960f9b..b03a404e 100644
--- a/src/Sound.cpp
+++ b/src/Sound.cpp
@@ -5,6 +5,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <string>
+#include <cstring>
 
 #include <SDL.h>