diff --git a/server/internal/shared/retrieval/qdrant.go b/server/internal/shared/retrieval/qdrant.go
index 8397c29..ebb2d13 100644
--- a/server/internal/shared/retrieval/qdrant.go
+++ b/server/internal/shared/retrieval/qdrant.go
@@ -195,9 +195,7 @@ func (s *qdrantStore) Search(ctx context.Context, req SearchRequest) ([]SearchPo
 	}
 	groupIDs := normalizeGroupIDs(req.GroupIDs)
 	if len(groupIDs) > 0 {
-		filter.Should = []*sdk.Condition{
-			sdk.NewMatchInts("group_id", groupIDs...),
-		}
+		filter.Must = append(filter.Must, sdk.NewMatchInts("group_id", groupIDs...))
 	}
 
 	points, err := s.client.Query(ctx, &sdk.QueryPoints{