diff --git a/other-notations/YARSpg.ebnf b/other-notations/YARSpg.ebnf
index 796cb88..e2adb5c 100644
--- a/other-notations/YARSpg.ebnf
+++ b/other-notations/YARSpg.ebnf
@@ -57,7 +57,7 @@ string_annotation
 rdf_annotation
          ::= ((pn_local pname) | (IRI ':')) (STRING | IRI)
 annotations_list
-         ::= '+' annotation (',' annotation)*
+         ::= '+' '[' annotation (',' annotation)* ']'
 props_list
          ::= '[' prop (',' prop)* ']'
 meta_prop