diff --git a/roaring/roaring.go b/roaring/roaring.go
index 8ac2f81a1..eed7aae39 100644
--- a/roaring/roaring.go
+++ b/roaring/roaring.go
@@ -167,11 +167,9 @@ func (b *Bitmap) Add(a ...uint64) (changed bool, err error) {
 	return changed, nil
 }
 
-// DirectAdd adds values to the bitmap by bypassing the op log.
-func (b *Bitmap) DirectAdd(values ...uint64) {
-	for _, value := range values {
-		b.add(value)
-	}
+// DirectAdd adds a value to the bitmap by bypassing the op log.
+func (b *Bitmap) DirectAdd(value uint64) bool {
+	return b.add(value)
 }
 
 func (b *Bitmap) add(v uint64) bool {
diff --git a/roaring/roaring_test.go b/roaring/roaring_test.go
index a06e882c8..64cb45e81 100644
--- a/roaring/roaring_test.go
+++ b/roaring/roaring_test.go
@@ -334,8 +334,9 @@ func TestBitmap_ArrayCountRange(t *testing.T) {
 func TestBitmap_DirectAdd(t *testing.T) {
 	bits := []uint64{0, 1, 2, 3, 4, 5, 12, 13, 14, 15, 16, 17, 1000000, 1000002, 1000003, 1000004, 1000005, 1000006, 1000010, 1000011, 1000012, 1000013, 1000014}
 	bm := roaring.NewBitmap()
-	bm.DirectAdd(0, 1, 2, 3, 4, 5, 12, 13, 14, 15, 16, 17)
-	bm.DirectAdd(1000000, 1000002, 1000003, 1000004, 1000005, 1000006, 1000010, 1000011, 1000012, 1000013, 1000014)
+	for _, b := range []uint64{0, 1, 2, 3, 4, 5, 12, 13, 14, 15, 16, 17, 1000000, 1000002, 1000003, 1000004, 1000005, 1000006, 1000010, 1000011, 1000012, 1000013, 1000014} {
+		bm.DirectAdd(b)
+	}
 	if len(bits) != int(bm.Count()) {
 		t.Fatalf("count %d != %d", len(bits), bm.Count())
 	}