diff --git a/ArduPlane/config.h b/ArduPlane/config.h
index 7b6836d6c2..b2f9929444 100644
--- a/ArduPlane/config.h
+++ b/ArduPlane/config.h
@@ -643,6 +643,7 @@
     MASK_LOG_GPS | \
     MASK_LOG_PM | \
     MASK_LOG_NTUN | \
+    MASK_LOG_CTUN | \
     MASK_LOG_MODE | \
     MASK_LOG_CMD | \
     MASK_LOG_COMPASS | \