diff --git a/src/db/unit_tests/dbHierarchyBuilderTests.cc b/src/db/unit_tests/dbHierarchyBuilderTests.cc
index 14798df78..55e0d6e76 100644
--- a/src/db/unit_tests/dbHierarchyBuilderTests.cc
+++ b/src/db/unit_tests/dbHierarchyBuilderTests.cc
@@ -40,7 +40,7 @@ TEST(1)
   }
 
   db::Layout target;
-  db::HierarchyBuilder builder (&target, false);
+  db::HierarchyBuilder builder (&target);
 
   for (db::Layout::layer_iterator li = ly.begin_layers (); li != ly.end_layers (); ++li) {