diff --git a/pkg/streamingpromql/operators/functions/range_vectors.go b/pkg/streamingpromql/operators/functions/range_vectors.go
index 9d763915bee..490831d8386 100644
--- a/pkg/streamingpromql/operators/functions/range_vectors.go
+++ b/pkg/streamingpromql/operators/functions/range_vectors.go
@@ -404,7 +404,7 @@ func changes(step types.RangeVectorStepData, _ float64, _ types.EmitAnnotationFu
 		}
 	}
 
-	accumulate(fHead)
+	accumulate(fHead[1:])
 	accumulate(fTail)
 
 	return changes, true, nil, nil