diff --git a/src/api/api_msg.c b/src/api/api_msg.c
index 26754887..3fe7673f 100644
--- a/src/api/api_msg.c
+++ b/src/api/api_msg.c
@@ -1241,7 +1241,7 @@ lwip_netconn_do_disconnect(struct api_msg_msg *msg)
 void
 lwip_netconn_do_listen(struct api_msg_msg *msg)
 {
-  if (ERR_IS_FATAL_LISTENCONNECT(msg->conn->last_err)) {
+  if (ERR_IS_FATAL(msg->conn->last_err)) {
     msg->err = msg->conn->last_err;
   } else {
     msg->err = ERR_CONN;
diff --git a/src/include/lwip/err.h b/src/include/lwip/err.h
index 0f0087d8..91458f14 100644
--- a/src/include/lwip/err.h
+++ b/src/include/lwip/err.h
@@ -61,10 +61,8 @@ typedef s8_t err_t;
 #define ERR_ALREADY    -9    /* Already connecting.      */
 #define ERR_ISCONN     -10   /* Conn already established.*/
 
-#define ERR_IS_FATAL(e) ((e) < ERR_ISCONN)
-
 #define ERR_CONN       -11   /* Not connected.           */
-#define ERR_IS_FATAL_LISTENCONNECT(e) ((e) < ERR_CONN)
+#define ERR_IS_FATAL(e) ((e) < ERR_CONN)
 
 #define ERR_ABRT       -12   /* Connection aborted.      */
 #define ERR_RST        -13   /* Connection reset.        */