diff --git a/Doxyfile b/Doxyfile
index 05fd7c6ee5..c768dff65d 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -1456,7 +1456,15 @@ INCLUDE_FILE_PATTERNS  =
 # undefined via #undef or recursively expanded use the := operator
 # instead of the = operator.
 
-PREDEFINED             = GUIDANCE_V_C __attribute__(x)=
+PREDEFINED             = USE_GPS \
+                       USE_AHRS \
+                       USE_AHRS_ALIGNER \
+                       USE_IMU \
+                       USE_MAGNETOMETER \
+                       USE_BAROMETER \
+                       RADIO_CONTROL \
+                       GUIDANCE_V_C \
+                       __attribute__(x)=
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 # this tag can be used to specify a list of macro names that should be expanded.