diff --git a/include/asterisk/time.h b/include/asterisk/time.h
index 8132e9cd1f..d041833547 100644
--- a/include/asterisk/time.h
+++ b/include/asterisk/time.h
@@ -24,6 +24,7 @@
 #define _ASTERISK_TIME_H
 
 #include <sys/time.h>
+#include <stdlib.h>
 
 #include "asterisk/inline_api.h"