diff --git a/promql/parser/parse.go b/promql/parser/parse.go
index b4a0c804e4..25d34f93bf 100644
--- a/promql/parser/parse.go
+++ b/promql/parser/parse.go
@@ -1193,7 +1193,7 @@ func (p *parser) getAtModifierVars(e Node) (**int64, *ItemType, *posrange.Pos, b
 
 // hasModifiersBeforeRange checks if an expression has offset/@ modifiers that are
 // immediately adjacent to a bracket (no space), which should be rejected for subqueries.
-func (p *parser) hasModifiersBeforeRange(expr Expr, bracketPos posrange.Pos) (bool, string) {
+func (*parser) hasModifiersBeforeRange(expr Expr, bracketPos posrange.Pos) (bool, string) {
 	var endPos posrange.Pos
 	var hasOffset bool
 	var hasAtModifier bool