diff --git a/ixmp4/data/db/optimization/table/repository.py b/ixmp4/data/db/optimization/table/repository.py
index 98f8cf22..40d5d09d 100644
--- a/ixmp4/data/db/optimization/table/repository.py
+++ b/ixmp4/data/db/optimization/table/repository.py
@@ -50,7 +50,7 @@ def add(
     ) -> Table:
         table = Table(name=name, run__id=run_id)
         indexsets = self.backend.optimization.indexsets.list(
-            name__in=constrained_to_indexsets
+            name__in=constrained_to_indexsets, run_id=run_id
         )
 
         for i in range(len(indexsets)):