1 files changed, 1 insertions, 0 deletions
diff --git a/src/pong.h b/src/pong.h
index dd469f5..d0099d4 100644
--- a/src/pong.h
+++ b/src/pong.h
@@ -15,6 +15,7 @@
 #include <setjmp.h>
 #include <string.h>
 #include <stdint.h>
+#include <stdlib.h>
 
 #include "sounds.h"