diff --git a/include/proto/fd.h b/include/proto/fd.h
index 9c7f66b..3c778ab 100644
--- a/include/proto/fd.h
+++ b/include/proto/fd.h
@@ -314,8 +314,7 @@
 	      ((evts & FD_EV_READY_R) ? FD_POLL_IN  : 0) |
 	      ((evts & FD_EV_READY_W) ? FD_POLL_OUT : 0) |
 	      ((evts & FD_EV_SHUT_R)  ? FD_POLL_HUP : 0) |
-	      ((evts & FD_EV_ERR_R)   ? FD_POLL_ERR : 0) |
-	      ((evts & FD_EV_ERR_W)   ? FD_POLL_ERR : 0);
+	      ((evts & FD_EV_ERR_RW)  ? FD_POLL_ERR : 0);
 
 	/* SHUTW reported while FD was active for writes is an error */
 	if ((fdtab[fd].ev & FD_EV_ACTIVE_W) && (evts & FD_EV_SHUT_W))
@@ -327,11 +326,11 @@
 		/* both sides stopped */
 		must_stop = FD_POLL_IN | FD_POLL_OUT;
 	}
-	else if (unlikely(!fd_recv_active(fd) && (evts & (FD_EV_READY_R | FD_EV_SHUT_R | FD_EV_ERR_R)))) {
+	else if (unlikely(!fd_recv_active(fd) && (evts & (FD_EV_READY_R | FD_EV_SHUT_R | FD_EV_ERR_RW)))) {
 		/* only send remains */
 		must_stop = FD_POLL_IN;
 	}
-	else if (unlikely(!fd_send_active(fd) && (evts & (FD_EV_READY_W | FD_EV_SHUT_W | FD_EV_ERR_W)))) {
+	else if (unlikely(!fd_send_active(fd) && (evts & (FD_EV_READY_W | FD_EV_SHUT_W | FD_EV_ERR_RW)))) {
 		/* only recv remains */
 		must_stop = FD_POLL_OUT;
 	}
diff --git a/include/types/fd.h b/include/types/fd.h
index 2630b66..e62e2a4 100644
--- a/include/types/fd.h
+++ b/include/types/fd.h
@@ -57,12 +57,12 @@
 #define FD_EV_ACTIVE_R_BIT 0
 #define FD_EV_READY_R_BIT  1
 #define FD_EV_SHUT_R_BIT   2
-#define FD_EV_ERR_R_BIT    3
+/* unused: 3 */
 
 #define FD_EV_ACTIVE_W_BIT 4
 #define FD_EV_READY_W_BIT  5
 #define FD_EV_SHUT_W_BIT   6
-#define FD_EV_ERR_W_BIT    7
+#define FD_EV_ERR_RW_BIT   7
 
 /* and flag values */
 #define FD_EV_ACTIVE_R  (1U << FD_EV_ACTIVE_R_BIT)
@@ -78,10 +78,10 @@
 #define FD_EV_SHUT_W    (1U << FD_EV_SHUT_W_BIT)
 #define FD_EV_SHUT_RW   (FD_EV_SHUT_R | FD_EV_SHUT_W)
 
-/* note that when FD_EV_ERR is set, SHUT is also set */
-#define FD_EV_ERR_R     (1U << FD_EV_ERR_R_BIT)
-#define FD_EV_ERR_W     (1U << FD_EV_ERR_W_BIT)
-#define FD_EV_ERR_RW    (FD_EV_ERR_R | FD_EV_ERR_W)
+/* note that when FD_EV_ERR is set, SHUT is also set. Also, ERR is for both
+ * directions at once (write error, socket dead, etc).
+ */
+#define FD_EV_ERR_RW    (1U << FD_EV_ERR_RW_BIT)
 
 
 /* This is the value used to mark a file descriptor as dead. This value is