diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index 2be5d7a42..af77d73a3 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -3724,7 +3724,7 @@ matrix_media_repo_redis_shards: |
   {{
     ([{
           'name': 'valkey',
-          'addr': (valkey_identifier + valkey_container_http_port | string),
+          'addr': (valkey_identifier + ':' + valkey_container_http_port | string),
     }])
     if valkey_enabled and matrix_media_repo_redis_enabled
     else []