diff --git a/doc/sof.doxygen.in b/doc/sof.doxygen.in
index 116f8639c..9751e00dd 100644
--- a/doc/sof.doxygen.in
+++ b/doc/sof.doxygen.in
@@ -17,13 +17,14 @@ QUIET            = YES
 
 EXTRACT_ALL	 = NO
 EXTRACT_STATIC	 = NO
+WARN_IF_UNDOCUMENTED = NO
 SHOW_INCLUDE_FILES = NO
 JAVADOC_AUTOBRIEF = NO
 INHERIT_DOCS	 = YES
 ENABLED_SECTIONS = ""
 MACRO_EXPANSION  = YES
 EXPAND_ONLY_PREDEF = YES
-PREDEFINED	 =
+PREDEFINED	 = __attribute__(x)=
 
 OPTIMIZE_OUTPUT_FOR_C = YES
 TYPEDEF_HIDES_STRUCT = YES