diff --git a/beacon-chain/sync/validate_blob.go b/beacon-chain/sync/validate_blob.go
index d23c9b85d13a..ebaa6ffe4169 100644
--- a/beacon-chain/sync/validate_blob.go
+++ b/beacon-chain/sync/validate_blob.go
@@ -176,7 +176,7 @@ func saveInvalidBlobToTemp(b blocks.ROBlob) {
 	if !features.Get().SaveInvalidBlob {
 		return
 	}
-	filename := fmt.Sprintf("blob_sidecar_%d.ssz", b.Slot())
+	filename := fmt.Sprintf("blob_sidecar_%d_%d.ssz", b.Slot(), b.Index)
 	fp := path.Join(os.TempDir(), filename)
 	log.Warnf("Writing invalid blob sidecar to disk at %s", fp)
 	enc, err := b.MarshalSSZ()