diff --git a/test/ipmi_interface_mock.hpp b/test/ipmi_interface_mock.hpp
index 409ef44..374dc93 100644
--- a/test/ipmi_interface_mock.hpp
+++ b/test/ipmi_interface_mock.hpp
@@ -12,7 +12,7 @@
   public:
     virtual ~IpmiInterfaceMock() = default;
     MOCK_METHOD1(sendPacket,
-                 std::vector<std::uint8_t>(const std::vector<std::uint8_t>&));
+                 std::vector<std::uint8_t>(std::vector<std::uint8_t>&));
 };
 
 } // namespace host_tool