diff --git a/zimfarm/api/api-configs.cm.yaml b/zimfarm/api/api-configs.cm.yaml
index b7e717e..b44a753 100644
--- a/zimfarm/api/api-configs.cm.yaml
+++ b/zimfarm/api/api-configs.cm.yaml
@@ -54,4 +54,6 @@ data:
   REQ_TIMEOUT_CMS: "50"
   REQ_TIMEOUT_GHCR: "10"
   ALEMBIC_UPGRADE_HEAD_ON_START: "y"
+  # Default publisher to set in ZIMs
+  DEFAULT_PUBLISHER: "openZIM"
 
diff --git a/zimit/api/api-configs.cm.yaml b/zimit/api/api-configs.cm.yaml
index 5e2dfd2..82bb215 100644
--- a/zimit/api/api-configs.cm.yaml
+++ b/zimit/api/api-configs.cm.yaml
@@ -13,3 +13,5 @@ data:
   REQ_TIMEOUT_NOTIFICATIONS: "5"
   REQ_TIMEOUT_CMS: "50"
   REQ_TIMEOUT_GHCR: "10"
+  # Default publisher to set in ZIMs
+  DEFAULT_PUBLISHER: "openZIM"