diff --git a/src/uev.h b/src/uev.h
index 52e0c7a..741416c 100644
--- a/src/uev.h
+++ b/src/uev.h
@@ -32,6 +32,7 @@
 
 /* I/O events, signal and timer revents are always UEV_READ */
 #define UEV_NONE        0
+#define UEV_ERROR       EPOLLERR
 #define UEV_READ        EPOLLIN
 #define UEV_WRITE       EPOLLOUT
 #define UEV_PRI         EPOLLPRI