diff --git a/src/extension/libevent.c b/src/extension/libevent.c
index dcccd636..e42d6a10 100644
--- a/src/extension/libevent.c
+++ b/src/extension/libevent.c
@@ -40,9 +40,6 @@
 #ifdef HAVE_EVENT2_EVENT_H
 #  include <event2/event.h>
 #else
-#  ifndef u_char
-#    define u_char unsigned char
-#  endif
 #  include <event.h>
 #  define evutil_socket_t int
 #  define event_free free