diff --git a/sourcemap/processor_test.go b/sourcemap/processor_test.go
index 0f1a4895259..239c0e88af2 100644
--- a/sourcemap/processor_test.go
+++ b/sourcemap/processor_test.go
@@ -291,19 +291,12 @@ func TestBatchProcessorTimeout(t *testing.T) {
 	}
 	span := &model.Span{
 		Metadata:   metadata,
-		Stacktrace: make(model.Stacktrace, 100),
-	}
-	for i := range span.Stacktrace {
-		span.Stacktrace[i] = cloneFrame(frame)
-	}
-	batch := make(model.Batch, 100)
-	for i := range batch {
-		batch[i].Span = span
+		Stacktrace: model.Stacktrace{cloneFrame(frame)},
 	}
 
 	before := time.Now()
 	processor := sourcemap.BatchProcessor{Store: store, Timeout: 100 * time.Millisecond}
-	err = processor.ProcessBatch(context.Background(), &batch)
+	err = processor.ProcessBatch(context.Background(), &model.Batch{{Span: span}})
 	assert.NoError(t, err)
 	taken := time.Since(before)
 	assert.Less(t, taken, time.Second)