diff --git a/src/Refinements-Parsing/FQParser.class.st b/src/Refinements-Parsing/FQParser.class.st
index 8823c9579..bb37cd83a 100644
--- a/src/Refinements-Parsing/FQParser.class.st
+++ b/src/Refinements-Parsing/FQParser.class.st
@@ -127,6 +127,6 @@ FQParser >> subC [
 FQParser >> tag [
 	^ 'tag' asParser
 	, Character space asParser
-	, PPParser decimalNat semicolonSeparated brackets
+	, ('[' asParser trim, ']' asParser ==> [ :_ | nil ] / PPParser decimalNat semicolonSeparated brackets)
 	==> [ :x | x third ]
 ]