diff --git a/test/regress_bufferevent.c b/test/regress_bufferevent.c
index 4169ebfc..0eca8d1a 100644
--- a/test/regress_bufferevent.c
+++ b/test/regress_bufferevent.c
@@ -46,6 +46,7 @@
 #include <signal.h>
 #include <unistd.h>
 #include <netdb.h>
+#include <netinet/in.h>
 #endif
 #include <fcntl.h>
 #include <signal.h>