diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 4109971dc8..5dc0deb324 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -655,7 +655,12 @@ func (api *ConsensusAPI) getBlobs(ctx context.Context, hashes []common.Hash, v2
 	if len(hashes) > 128 {
 		return nil, engine.TooLargeRequest.With(fmt.Errorf("requested blob count too large: %v", len(hashes)))
 	}
-	available := len(api.eth.BlobTxPool().AvailableBlobs(hashes))
+	available := 0
+	for _, ok := range api.eth.BlobTxPool().AvailableBlobs(hashes) {
+		if ok {
+			available++
+		}
+	}
 	getBlobsRequestedCounter.Inc(int64(len(hashes)))
 	getBlobsAvailableCounter.Inc(int64(available))