diff --git a/tests/test5.1.yaml b/tests/test5.1.yaml
index 5b593bfcbb..08f4df3e57 100644
--- a/tests/test5.1.yaml
+++ b/tests/test5.1.yaml
@@ -13,6 +13,7 @@ esp32:
     type: esp-idf
 
 modem:
+  ready: modem_ready
   rx_pin: 26
   tx_pin: 27
   power_pin: 4