diff --git a/rpc/beaconapi.go b/rpc/beaconapi.go
index 314db5eb..0423f416 100644
--- a/rpc/beaconapi.go
+++ b/rpc/beaconapi.go
@@ -234,11 +234,12 @@ func (bc *BeaconClient) GetBlockHeaderBySlot(slot uint64) (*rpctypes.StandardV1B
 
 func (bc *BeaconClient) GetBlockBodyByBlockroot(blockroot []byte) (*rpctypes.StandardV2BeaconBlockResponse, error) {
 	resp, err := bc.get(fmt.Sprintf("%s/eth/v2/beacon/blocks/0x%x", bc.endpoint, blockroot))
+	disperr := err
 	if err != nil {
 		resp, err = bc.get(fmt.Sprintf("%s/eth/v1/beacon/blocks/0x%x", bc.endpoint, blockroot))
 	}
 	if err != nil {
-		return nil, fmt.Errorf("error retrieving block body for 0x%x: %v", blockroot, err)
+		return nil, fmt.Errorf("error retrieving block body for 0x%x: %v", blockroot, disperr)
 	}
 
 	var parsedResponse rpctypes.StandardV2BeaconBlockResponse