diff --git a/Utils/StopWatch.h b/Utils/StopWatch.h
index cd6a7ffc..7658c354 100644
--- a/Utils/StopWatch.h
+++ b/Utils/StopWatch.h
@@ -2,6 +2,7 @@
 
 #include <chrono>
 #include "utils_export.h"
+#include <string>
 
 namespace Utils
 {
@@ -13,10 +14,13 @@ namespace Utils
 		void start();
 		void stop();
 
+		std::chrono::system_clock::duration getElapsedDuration() const;
+
 		long long getElapsedMilliseconds() const;
-		double getElapsedSeconds() const;		
+		double getElapsedSeconds() const;			
+
 		std::string getElapsedSecondsString(const std::string& suffix) const;
-		std::chrono::system_clock::duration getElapsedDuration() const;
+		
 
 		//template<class D>
 		//std::chrono::system_clock::duration getElapsedDuration() const;