diff --git a/src/Doxyfile b/src/Doxyfile
index 3efbdb9..b880bb2 100644
--- a/src/Doxyfile
+++ b/src/Doxyfile
@@ -2188,7 +2188,7 @@
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-PREDEFINED             = VMA_CALL_PRE= VMA_CALL_POST=
+PREDEFINED             = VMA_CALL_PRE= VMA_CALL_POST= VMA_NOT_NULL= VMA_NULLABLE= VMA_LEN_IF_NOT_NULL(len)= VMA_NOT_NULL_NON_DISPATCHABLE= VMA_NULLABLE_NON_DISPATCHABLE=
 
 # 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. The