diff --git a/Source/inet_pton.c b/Source/inet_pton.c
index 68a941daf..c205ab01b 100644
--- a/Source/inet_pton.c
+++ b/Source/inet_pton.c
@@ -20,6 +20,7 @@
 #include "config.h"
 
 #include <ctype.h>
+#include <stdint.h>
 #include <sys/types.h>
 #include <sys/param.h>
 #include <errno.h>