diff --git a/src/main/resources/metadata/tezos.carthagenet.conf b/src/main/resources/metadata/tezos.carthagenet.conf
index 4e7d0a29d..2f099e688 100644
--- a/src/main/resources/metadata/tezos.carthagenet.conf
+++ b/src/main/resources/metadata/tezos.carthagenet.conf
@@ -574,6 +574,10 @@
         hash {
           visible: true
           data-type: "hash"
+          reference: {
+            entity: "operations"
+            key: "operation_group_hash"
+          }
         }
         branch {
           visible: true
diff --git a/src/main/resources/metadata/tezos.mainnet.conf b/src/main/resources/metadata/tezos.mainnet.conf
index 4e7d0a29d..2f099e688 100644
--- a/src/main/resources/metadata/tezos.mainnet.conf
+++ b/src/main/resources/metadata/tezos.mainnet.conf
@@ -574,6 +574,10 @@
         hash {
           visible: true
           data-type: "hash"
+          reference: {
+            entity: "operations"
+            key: "operation_group_hash"
+          }
         }
         branch {
           visible: true