diff --git a/src/iodined.c b/src/iodined.c
index 862734c..121b7e2 100644
--- a/src/iodined.c
+++ b/src/iodined.c
@@ -30,6 +30,7 @@
 #include <pwd.h>
 #include <arpa/inet.h>
 #include <netinet/in.h>
+#include <netinet/in_systm.h>
 #include <netinet/ip.h>
 #include <zlib.h>