diff --git a/port/src/preprocess/common.h b/port/src/preprocess/common.h
index b75c6517f..4d2e6715d 100644
--- a/port/src/preprocess/common.h
+++ b/port/src/preprocess/common.h
@@ -6,11 +6,19 @@
 #include <stdlib.h>
 #include <assert.h>
 
+#ifdef PLATFORM_WIN32
+
 #include <winsock2.h>
 // this BS comes from windows.h
 #undef near
 #undef far
 
+#else
+
+#include <arpa/inet.h>
+
+#endif
+
 #include <sys/param.h>
 
 #include <PR/ultratypes.h>