diff --git a/jackbridge.c b/jackbridge.c
index c297534..45b1a40 100644
--- a/jackbridge.c
+++ b/jackbridge.c
@@ -17,6 +17,7 @@
 #include "jackbridge.h"
 
 #include <stdio.h>
+#include <stdlib.h>
 
 #include <windows.h>