diff --git a/monitor.h b/monitor.h
index 00731ba..c5e7b99 100644
--- a/monitor.h
+++ b/monitor.h
@@ -3,7 +3,7 @@ int monitor_insert_directory(int fd, char *name, const char * path);
 int monitor_remove_file(const char * path);
 int monitor_remove_directory(int fd, const char * path);
 
-#if defined(HAVE_INOTIFY) && defined(HAVE_KQUEUE)
+#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
 #define	HAVE_WATCH 1
 int	add_watch(int, const char *);
 #endif