diff --git a/ampel-firmware/lorawan.cpp b/ampel-firmware/lorawan.cpp
index 57fa7441e3f21e836a4a75721e47be14b63dbc85..784b46fb61b25bc8d3868a3a541baa14f241150a 100644
--- a/ampel-firmware/lorawan.cpp
+++ b/ampel-firmware/lorawan.cpp
@@ -47,7 +47,7 @@ namespace lorawan {
     LMIC_reset();
     // Join, but don't send anything yet.
     LMIC_startJoining();
-    sensor_console::defineIntCommand("lora", setLoRaInterval, " 300 (Sets LoRaWAN sending interval, in s)");
+    sensor_console::defineIntCommand("lora", setLoRaInterval, F(" 300 (Sets LoRaWAN sending interval, in s)"));
   }
 
   // Checks if OTAA is connected, or if payload should be sent.