diff --git a/doc/doxy.config.in b/doc/doxy.config.in
index 107f4ec1..232cd7e4 100644
--- a/doc/doxy.config.in
+++ b/doc/doxy.config.in
@@ -1255,7 +1255,7 @@ ENABLE_PREPROCESSING   = YES
 # compilation will be performed. Macro expansion can be done in a controlled
 # way by setting EXPAND_ONLY_PREDEF to YES.
 
-MACRO_EXPANSION        = NO
+MACRO_EXPANSION        = YES
 
 # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES
 # then the macro expansion is limited to the macros specified with the