diff --git a/src/main/target/common_fc_post.h b/src/main/target/common_fc_post.h
index 198b13cb64..8479caa243 100644
--- a/src/main/target/common_fc_post.h
+++ b/src/main/target/common_fc_post.h
@@ -21,6 +21,10 @@
 
 // Targets with built-in vtx do not need external vtx
 #if defined(VTX_RTC6705) && !defined(VTX_RTC6705_OPTIONAL)
-# undef VTX_SMARTAUDIO
-# undef VTX_TRAMP
+#undef VTX_SMARTAUDIO
+#undef VTX_TRAMP
+#endif
+
+#if defined(USE_QUAD_MIXER_ONLY) && defined(USE_SERVOS)
+#undef USE_SERVOS
 #endif