diff --git a/caluma/caluma_workflow/schema.py b/caluma/caluma_workflow/schema.py
index 46a33f2be..2332577cc 100644
--- a/caluma/caluma_workflow/schema.py
+++ b/caluma/caluma_workflow/schema.py
@@ -315,7 +315,7 @@ class Meta:
 
 class ReopenCase(Mutation):
     class Input:
-        id = graphene.ID()
+        id = graphene.ID(required=True)
         work_items = graphene.List(
             graphene.ID,
             required=True,
diff --git a/caluma/tests/__snapshots__/test_schema.ambr b/caluma/tests/__snapshots__/test_schema.ambr
index e9f3499de..39d96712c 100644
--- a/caluma/tests/__snapshots__/test_schema.ambr
+++ b/caluma/tests/__snapshots__/test_schema.ambr
@@ -2041,6 +2041,8 @@
   
   input ReopenCaseInput {
     id: ID!
+  
+    """List of work item ids to be readied when the case is reopened"""
     workItems: [ID]!
   
     """Provide extra context for dynamic jexl transforms and events"""