diff --git a/oc2rnet.c b/oc2rnet.c
index 7e6773d..756c375 100644
--- a/oc2rnet.c
+++ b/oc2rnet.c
@@ -24,6 +24,7 @@ static uint16_t checksum(void *b, int len) {
 #if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
 
 #include <sys/types.h>
+
 #include <netinet/in.h>
 #include <netinet/ip.h>
 #include <netinet/ip_icmp.h>