diff --git a/libraries/AP_HAL_ChibiOS/Util.cpp b/libraries/AP_HAL_ChibiOS/Util.cpp
index a6d802ea642..5b6e7057351 100644
--- a/libraries/AP_HAL_ChibiOS/Util.cpp
+++ b/libraries/AP_HAL_ChibiOS/Util.cpp
@@ -269,7 +269,7 @@ uint64_t Util::get_hw_rtc() const
 
 #if HAL_GCS_ENABLED
 #include <GCS_MAVLink/GCS.h>
-#define Debug(fmt, args ...)  do { gcs().send_text(MAV_SEVERITY_INFO, fmt, ## args); } while (0)
+#define Debug(fmt, args ...)  do { GCS_SEND_TEXT(MAV_SEVERITY_INFO, fmt, ## args); } while (0)
 #endif // HAL_GCS_ENABLED
 
 #ifndef Debug