1 files changed, 1 insertions, 1 deletions

diff --git a/ot_event.c b/ot_event.c
index 8f55817..b4c4a55 100644
--- a/ot_event.c
+++ b/ot_event.c
@@ -171,7 +171,7 @@ static int event_change(int fd, int what, uint32_t generation, int deleting) {
   return 0;
 }
 
-int event_add(int fd, int what, uint32_t generation) { return event_change(fd, what, generation, 0); }
+int event_add(int fd, int what, uint32_t generation) { return what ? event_change(fd, what, generation, 0) : 0; }
 int event_modify(int fd, int what, uint32_t generation) { return event_change(fd, what, generation, 0); }
 int event_del(int fd) { return event_change(fd, 0, 0, 1); }