diff --git a/doc/taglib.doxygen b/doc/taglib.doxygen
index f31c0f15..9a7745af 100644
--- a/doc/taglib.doxygen
+++ b/doc/taglib.doxygen
@@ -169,7 +169,9 @@ SEARCH_INCLUDES        = YES
 INCLUDE_PATH           = 
 INCLUDE_FILE_PATTERNS  = 
 PREDEFINED             = DO_NOT_DOCUMENT \
-                         DOXYGEN
+                         DOXYGEN \
+                         WITH_MP4 \
+                         WITH_ASF
 EXPAND_AS_DEFINED      = 
 SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------