diff --git a/manage-server/src/main/java/manage/conf/MetaDataAutoConfiguration.java b/manage-server/src/main/java/manage/conf/MetaDataAutoConfiguration.java
index 8c68a008..b0fbee21 100644
--- a/manage-server/src/main/java/manage/conf/MetaDataAutoConfiguration.java
+++ b/manage-server/src/main/java/manage/conf/MetaDataAutoConfiguration.java
@@ -130,6 +130,11 @@ public Schema schema(String type) {
         return this.schemas.get(type);
     }
 
+    public Schema anySchema() {
+        return this.schemas.getOrDefault(EntityType.SP.getType(),
+                this.schemas.values().stream().findAny().orElseThrow(IllegalAccessError::new));
+    }
+
     public ObjectMapper getObjectMapper() {
         return objectMapper;
     }
diff --git a/manage-server/src/main/java/manage/hook/EmptyRevisionHook.java b/manage-server/src/main/java/manage/hook/EmptyRevisionHook.java
index 142a9130..06084d58 100644
--- a/manage-server/src/main/java/manage/hook/EmptyRevisionHook.java
+++ b/manage-server/src/main/java/manage/hook/EmptyRevisionHook.java
@@ -28,7 +28,7 @@ public MetaData prePut(MetaData previous, MetaData newMetaData, AbstractUser use
         boolean eq = mapEquality(previousData, newData) && mapEquality(newData, previousData);
         if (eq) {
             //we need a schema, does not matter for which entityType
-            Schema schema = metaDataAutoConfiguration.schema(EntityType.RP.getType());
+            Schema schema = metaDataAutoConfiguration.anySchema();
             throw new ValidationException(schema, "No data is changed. An update would result in an empty revision", "empty-revision");
         }
         return super.prePut(previous, newMetaData, user);