diff --git a/beacon_node/http_api/src/validator.rs b/beacon_node/http_api/src/validator.rs
index 91d4ca37b21..777ae573b1c 100644
--- a/beacon_node/http_api/src/validator.rs
+++ b/beacon_node/http_api/src/validator.rs
@@ -89,14 +89,14 @@ pub async fn produce_block_v3<T: BeaconChainTypes>(
 
     match block_response_type {
         BeaconBlockResponseType::Full(block_response) => {
-            build_response_v3(chain, block_response, endpoint_version, accept_header, true)
+            build_response_v3(chain, block_response, endpoint_version, accept_header, false)
         }
         BeaconBlockResponseType::Blinded(block_response) => build_response_v3(
             chain,
             block_response,
             endpoint_version,
             accept_header,
-            false,
+            true,
         ),
     }
 }