diff --git a/other-notations/YARSpg.ebnf b/other-notations/YARSpg.ebnf
index 5185def..f4cac47 100644
--- a/other-notations/YARSpg.ebnf
+++ b/other-notations/YARSpg.ebnf
@@ -137,13 +137,13 @@ complex_value_schema
            | listd_schema
            | struct_schema
 multiset_schema
-         ::= MULTISET '(' ( primitive_value_schema | set_schema ) NULL? cardinality? ')' meta_prop_schema?
+         ::= MULTISET '(' ( primitive_value_schema | multiset_schema ) NULL? cardinality? ')' meta_prop_schema?
 set_schema
          ::= SET '(' ( primitive_value_schema | set_schema ) NULL? cardinality? ')' meta_prop_schema?
 list_schema
          ::= LIST '(' ( primitive_value_schema | list_schema ) NULL? cardinality? ')' meta_prop_schema?
 listd_schema
-         ::= LISTD '(' ( primitive_value_schema | list_schema ) NULL? cardinality? ')' meta_prop_schema?
+         ::= LISTD '(' ( primitive_value_schema | listd_schema ) NULL? cardinality? ')' meta_prop_schema?
 struct_schema
          ::= STRUCT '(' ( primitive_value_schema | struct_schema ) NULL? cardinality? ')' meta_prop_schema?
 edge_schema
@@ -197,4 +197,4 @@ UNSIGNED_INT
          ::= [0-9]+
 ALNUMPLUS
          ::= [a-zA-Z_] [a-zA-Z0-9_]*
-WS       ::= [ #x9#xa]+
\ No newline at end of file
+WS       ::= [ #x9#xa]+