diff --git a/examples/zephyr/Makefile b/examples/zephyr/Makefile
index 01b06809..2311a7b3 100644
--- a/examples/zephyr/Makefile
+++ b/examples/zephyr/Makefile
@@ -10,3 +10,6 @@ build:
 
 flash:
 	cd $(ZEPHYR_DIR) && west flash
+
+clean:
+	true
diff --git a/examples/zephyr/http-server/src/main.c b/examples/zephyr/http-server/src/main.c
index 4f0d1f8d..8d478d95 100644
--- a/examples/zephyr/http-server/src/main.c
+++ b/examples/zephyr/http-server/src/main.c
@@ -52,7 +52,6 @@ static void sfn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
 
 static void timer_fn(void *arg) {
   struct mg_mgr *mgr = (struct mg_mgr *) arg;
-  return;
   if (s_sntp_conn == NULL) s_sntp_conn = mg_sntp_connect(mgr, NULL, sfn, NULL);
   if (s_boot_timestamp < 9999) mg_sntp_send(s_sntp_conn, time(NULL));
 }
diff --git a/mongoose.c b/mongoose.c
index 71e678f5..4a7752c1 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -2799,7 +2799,7 @@ struct mg_connection *mg_listen(struct mg_mgr *mgr, const char *url,
     c->fn = fn;
     c->fn_data = fn_data;
     mg_call(c, MG_EV_OPEN, NULL);
-    MG_DEBUG(("%lu %s", c->id, url));
+    MG_DEBUG(("%lu %s %p", c->id, url, c->fd));
   }
   return c;
 }
diff --git a/src/net.c b/src/net.c
index a706f139..7bf4bdd1 100644
--- a/src/net.c
+++ b/src/net.c
@@ -198,7 +198,7 @@ struct mg_connection *mg_listen(struct mg_mgr *mgr, const char *url,
     c->fn = fn;
     c->fn_data = fn_data;
     mg_call(c, MG_EV_OPEN, NULL);
-    MG_DEBUG(("%lu %s", c->id, url));
+    MG_DEBUG(("%lu %s %p", c->id, url, c->fd));
   }
   return c;
 }