diff --git a/manager.hpp b/manager.hpp
index 02dd253..e8c28e9 100644
--- a/manager.hpp
+++ b/manager.hpp
@@ -116,7 +116,7 @@
                                  sd_bus_error* retError);
 
     /** @brief The string of time mode property */
-    static constexpr auto PROPERTY_TIME_MODE = "TimeSyncMethod";
+    static constexpr auto propertyTimeMode = "TimeSyncMethod";
 };
 
 } // namespace time