diff --git a/test/helpers.hpp b/test/helpers.hpp
index 8f81bc6..4d3faea 100644
--- a/test/helpers.hpp
+++ b/test/helpers.hpp
@@ -45,6 +45,7 @@
     EXPECT_CALL(*sdbus_mock,
                 sd_bus_add_object_vtable(IsNull(), NotNull(), StrEq(path),
                                          StrEq(intf), NotNull(), NotNull()))
+        .Times(::testing::AnyNumber())
         .WillOnce(Return(0));
 
     if (!defer)