diff --git a/extensions/openpower-pels/event_logger.hpp b/extensions/openpower-pels/event_logger.hpp
index eed2b81..1af8e2e 100644
--- a/extensions/openpower-pels/event_logger.hpp
+++ b/extensions/openpower-pels/event_logger.hpp
@@ -55,7 +55,7 @@
      *
      * @param[in] creator - The function to use to create the event log
      */
-    EventLogger(LogFunction creator) :
+    explicit EventLogger(LogFunction creator) :
         _event(sdeventplus::Event::get_default()), _creator(creator)
     {
     }