diff --git a/include/haproxy/channel-t.h b/include/haproxy/channel-t.h
index 8bd06e1..0ac213a 100644
--- a/include/haproxy/channel-t.h
+++ b/include/haproxy/channel-t.h
@@ -52,7 +52,7 @@
  */
 
 #define CF_READ_NULL      0x00000001  /* last read detected on producer side */
-#define CF_READ_PARTIAL   0x00000002  /* some data were read from producer */
+#define CF_READ_PARTIAL   0x00000002  /* some data were read from producer or a read exception occurred */
 #define CF_READ_TIMEOUT   0x00000004  /* timeout while waiting for producer */
 #define CF_READ_ERROR     0x00000008  /* unrecoverable error on producer side */
 #define CF_READ_ACTIVITY  (CF_READ_NULL|CF_READ_PARTIAL|CF_READ_ERROR)
diff --git a/src/stream_interface.c b/src/stream_interface.c
index 68b8952..e5da8ea 100644
--- a/src/stream_interface.c
+++ b/src/stream_interface.c
@@ -1351,8 +1351,13 @@
 		flags |= ((!conn_is_back(conn) && (si_strm(si)->be->options & PR_O_ABRT_CLOSE)) ? CO_RFL_KEEP_RECV : 0);
 		ret = cs->conn->mux->rcv_buf(cs, &ic->buf, max, flags | (co_data(ic) ? CO_RFL_BUF_WET : 0));
 
-		if (cs->flags & CS_FL_WANT_ROOM)
+		if (cs->flags & CS_FL_WANT_ROOM) {
 			si_rx_room_blk(si);
+			/* Add READ_PARTIAL because some data are pending but
+			 * cannot be xferred to the channel
+			 */
+			ic->flags |= CF_READ_PARTIAL;
+		}
 
 		if (ret <= 0) {
 			/* if we refrained from reading because we asked for a