diff --git a/reactos/lib/icmp/icmp_main.c b/reactos/lib/icmp/icmp_main.c
index ba565518afa..3218337a05c 100644
--- a/reactos/lib/icmp/icmp_main.c
+++ b/reactos/lib/icmp/icmp_main.c
@@ -66,6 +66,7 @@
 #include "winbase.h"
 #include "winerror.h"
 #include "ipexport.h"
+#include <ws2tcpip.h>
 #include "icmpapi.h"
 #include "wine/debug.h"