diff --git a/libavcodec/Doxyfile b/libavcodec/Doxyfile
index 5b8c9b72b3..1fb9217fdf 100644
--- a/libavcodec/Doxyfile
+++ b/libavcodec/Doxyfile
@@ -835,7 +835,7 @@ INCLUDE_FILE_PATTERNS  =
 # or name=definition (no spaces). If the definition and the = are 
 # omitted =1 is assumed.
 
-PREDEFINED             = 
+PREDEFINED             = __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.