diff --git a/source/YamlHelper.cpp b/source/YamlHelper.cpp
index 1a93f185..f6a4c366 100644
--- a/source/YamlHelper.cpp
+++ b/source/YamlHelper.cpp
@@ -56,7 +56,7 @@ void YamlHelper::FinaliseParser(void)
 	yaml_parser_delete(&m_parser);
 }
 
-void YamlHelper::GetNextEvent()
+void YamlHelper::GetNextEvent(void)
 {
 	yaml_event_delete(&m_newEvent);
 	if (!yaml_parser_parse(&m_parser, &m_newEvent))
diff --git a/source/YamlHelper.h b/source/YamlHelper.h
index e300e7f1..69a38d5e 100644
--- a/source/YamlHelper.h
+++ b/source/YamlHelper.h
@@ -46,7 +46,7 @@ public:
 	void GetMapStartEvent(void);
 
 private:
-	void GetNextEvent();
+	void GetNextEvent(void);
 	int ParseMap(MapYaml& mapYaml);
 	std::string GetMapValue(MapYaml& mapYaml, const std::string &key, bool& bFound);
 	UINT LoadMemory(MapYaml& mapYaml, const LPBYTE pMemBase, const size_t kAddrSpaceSize);