diff --git a/internal/services/shared/schema.go b/internal/services/shared/schema.go
index 7c5b736484..5841e9d194 100644
--- a/internal/services/shared/schema.go
+++ b/internal/services/shared/schema.go
@@ -321,7 +321,7 @@ func sanityCheckNamespaceChanges(
 			qy, qyErr := rwt.QueryRelationships(ctx, datastore.RelationshipsFilter{
 				OptionalResourceType:     nsdef.Name,
 				OptionalResourceRelation: delta.RelationName,
-			})
+			}, options.WithLimit(options.LimitOne))
 
 			err = errorIfTupleIteratorReturnsTuples(
 				ctx,