diff --git a/src/ev_select.c b/src/ev_select.c
index 52c4454..19b1380 100644
--- a/src/ev_select.c
+++ b/src/ev_select.c
@@ -61,7 +61,7 @@
 		}
 
 		HA_SPIN_LOCK(FD_LOCK, &fdtab[fd].lock);
-		fdtab[fd].updated = 0;
+		fdtab[fd].update_mask &= ~tid_bit;
 		fdtab[fd].new = 0;
 
 		eo = fdtab[fd].state;