diff --git a/authorizer-app-backend/src/main/java/org/radarbase/authorizer/config/RestSourceClients.kt b/authorizer-app-backend/src/main/java/org/radarbase/authorizer/config/RestSourceClients.kt
index 1b2df580..17fc91e6 100644
--- a/authorizer-app-backend/src/main/java/org/radarbase/authorizer/config/RestSourceClients.kt
+++ b/authorizer-app-backend/src/main/java/org/radarbase/authorizer/config/RestSourceClients.kt
@@ -1,5 +1,5 @@
 package org.radarbase.authorizer.config
 
 data class RestSourceClients(
-    val clients: List<RestSourceClient>,
+    val clients: List<RestSourceClient> = emptyList(),
 )