diff --git a/doc/doxygen/doxygen.conf.in b/doc/doxygen/doxygen.conf.in
index d29f0674..b053cd5e 100644
--- a/doc/doxygen/doxygen.conf.in
+++ b/doc/doxygen/doxygen.conf.in
@@ -150,7 +150,7 @@ EXPAND_ONLY_PREDEF     = NO
 SEARCH_INCLUDES        = YES
 INCLUDE_PATH           = 
 INCLUDE_FILE_PATTERNS  = 
-PREDEFINED             = 
+PREDEFINED             = DOXYGEN_IGNORE
 EXPAND_AS_DEFINED      = 
 SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------