diff --git a/pkg/logql/engine.go b/pkg/logql/engine.go
index 5e88bdd5d4ad..40590408a7c3 100644
--- a/pkg/logql/engine.go
+++ b/pkg/logql/engine.go
@@ -389,7 +389,7 @@ func (q *query) evalSample(ctx context.Context, expr syntax.SampleExpr) (promql_
 			return JoinQuantileSketchVector(next, vec, stepEvaluator, q.params)
 		case CountMinSketchVector:
 			return JoinCountMinSketchVector(next, vec, stepEvaluator, q.params)
-		case LimitedLabelVector:
+		case HeapCountMinSketchVector:
 			return JoinCountMinSketchVector(next, vec.CountMinSketchVector, stepEvaluator, q.params)
 		default:
 			return nil, fmt.Errorf("unsupported result type: %T", r)