diff --git a/python/port/genhdr/qstrdefs.in.h b/python/port/genhdr/qstrdefs.in.h
index 13ba0540b..5c2c32966 100644
--- a/python/port/genhdr/qstrdefs.in.h
+++ b/python/port/genhdr/qstrdefs.in.h
@@ -164,6 +164,7 @@ Q(divmod)
 Q(e)
 Q(end)
 Q(endswith)
+Q(enumerate)
 Q(erf)
 Q(erfc)
 Q(eval)
diff --git a/python/port/mpconfigport.h b/python/port/mpconfigport.h
index 3eca01e96..74726e038 100644
--- a/python/port/mpconfigport.h
+++ b/python/port/mpconfigport.h
@@ -47,9 +47,6 @@
 // Whether to support property object
 #define MICROPY_PY_BUILTINS_PROPERTY (0)
 
-// Whether to support enumerate function(type)
-#define MICROPY_PY_BUILTINS_ENUMERATE (0)
-
 // Whether to support filter function(type)
 #define MICROPY_PY_BUILTINS_FILTER (0)