diff --git a/Blimp/Blimp.cpp b/Blimp/Blimp.cpp
index 7296aca32a..886de7b4c7 100644
--- a/Blimp/Blimp.cpp
+++ b/Blimp/Blimp.cpp
@@ -260,7 +260,7 @@ void Blimp::update_altitude()
     read_barometer();
 
     if (should_log(MASK_LOG_CTUN)) {
-        write_notch_log_messages();
+        AP::ins().write_notch_log_messages();
 #if HAL_GYROFFT_ENABLED
         gyro_fft.write_log_messages();
 #endif