diff --git a/tests/test-generaldelta.t b/tests/test-generaldelta.t
--- a/tests/test-generaldelta.t
+++ b/tests/test-generaldelta.t
@@ -1,3 +1,5 @@
+#require no-reposimplestore
+
 Check whether size of generaldelta revlog is not bigger than its
 regular equivalent. Test would fail if generaldelta was naive
 implementation of parentdelta: third manifest revision would be fully
diff --git a/tests/test-unionrepo.t b/tests/test-unionrepo.t
--- a/tests/test-unionrepo.t
+++ b/tests/test-unionrepo.t
@@ -1,3 +1,5 @@
+#require no-reposimplestore
+
 Test unionrepo functionality
 
 Create one repository