diff --git a/README.md b/README.md
index 64ad8b65..ce9054a8 100644
--- a/README.md
+++ b/README.md
@@ -599,8 +599,9 @@ Example:
 
 My type is:
 
-* a C boolean: M\_BOOL\_OPLIST (M\_DEFAULT\_OPLIST also works)
+* a C boolean: M\_BOOL\_OPLIST (M\_DEFAULT\_OPLIST also works partially)
 * a C integer or a C float: M\_DEFAULT\_OPLIST (it can also be ommited),
+* a C enumerate: M\_ENUM\_OPLIST
 * a pointer to something: M\_PTR\_OPLIST,
 * a plain structure that can be init/copy/compare with memset/memcpy/memcmp: M\_POD\_OPLIST,
 * a plain structure that is passed by reference using [1] and can be init,copy,compare with memset,memcpy,memcmp: M\_A1\_OPLIST,
@@ -5531,6 +5532,11 @@ Default oplist for C standard boolean.
 
 Default oplist for C standard types (int & float)
 
+##### M\_ENUM\_OPLIST(type, init_value)
+
+Default oplist for a C standard enumerate of type 'type',
+and of initial value 'init_value'
+
 ##### M\_CSTR\_OPLIST
 
 Default oplist for the C type const char *, seen as a constant string.