diff --git a/powercap.hpp b/powercap.hpp
index b52ebda..3ef09c9 100644
--- a/powercap.hpp
+++ b/powercap.hpp
@@ -74,7 +74,7 @@
      * @param[in]  msg       - Data associated with pcap change signal
      *
      */
-    void pcapChanged(sdbusplus::message::message& msg);
+    void pcapChanged(sdbusplus::message_t& msg);
 
     /** @brief Get the power cap property
      *