diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 07ce523462..dca245ccf1 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -541,12 +541,21 @@ func (api *ConsensusAPI) GetBlobsV2(hashes []common.Hash) ([]*engine.BlobAndProo
 		getBlobsV2RequestMiss.Inc(1)
 		return nil, nil
 	}
-	getBlobsV2RequestHit.Inc(1)
 
 	blobs, _, proofs, err := api.eth.BlobTxPool().GetBlobs(hashes, types.BlobSidecarVersion1)
 	if err != nil {
 		return nil, engine.InvalidParams.With(err)
 	}
+
+	// To comply with API spec, check again that we really got all data needed
+	for _, blob := range blobs {
+		if blob == nil {
+			getBlobsV2RequestMiss.Inc(1)
+			return nil, nil
+		}
+	}
+	getBlobsV2RequestHit.Inc(1)
+
 	res := make([]*engine.BlobAndProofV2, len(hashes))
 	for i := 0; i < len(blobs); i++ {
 		// the blob is missing, return null as response. It should