diff --git a/config/default/credentials.yaml b/config/default/credentials.yaml
index bfd818533ea..9be5a73d223 100644
--- a/config/default/credentials.yaml
+++ b/config/default/credentials.yaml
@@ -5,7 +5,7 @@ metadata:
   namespace: system
 type: Opaque
 data:
-  subscription-id: ${AZURE_SUBSCRIPTION_ID_B64}
-  tenant-id: ${AZURE_TENANT_ID_B64}
-  client-id: ${AZURE_CLIENT_ID_B64}
-  client-secret: ${AZURE_CLIENT_SECRET_B64}
+  subscription-id: ${AZURE_SUBSCRIPTION_ID_B64:=""}
+  tenant-id: ${AZURE_TENANT_ID_B64:=""}
+  client-id: ${AZURE_CLIENT_ID_B64:=""}
+  client-secret: ${AZURE_CLIENT_SECRET_B64:=""}