diff --git a/UNITTESTS/stubs/LoRaPHY_stub.cpp b/UNITTESTS/stubs/LoRaPHY_stub.cpp
index 53dce9fe4f..5c0f8f53ec 100644
--- a/UNITTESTS/stubs/LoRaPHY_stub.cpp
+++ b/UNITTESTS/stubs/LoRaPHY_stub.cpp
@@ -173,7 +173,8 @@ uint8_t LoRaPHY::verify_link_ADR_req(verify_adr_params_t *verify_params,
 
 void LoRaPHY::get_rx_window_params(float t_symbol, uint8_t min_rx_symbols,
                                    float rx_error, float wakeup_time,
-                                   uint32_t *window_length, int32_t *window_offset,
+                                   uint32_t *window_length, uint32_t *window_length_ms,
+                                   int32_t *window_offset,
                                    uint8_t phy_dr)
 {
 }