diff --git a/Profiling.cpp b/Profiling.cpp
index 839406c2..70df0e76 100644
--- a/Profiling.cpp
+++ b/Profiling.cpp
@@ -128,7 +128,7 @@ namespace data
 		UpdateTime ();
 	}	
 
-	bool RouterProfile::IsLowPartcipationRate (int elapsedTime) const
+	bool RouterProfile::IsLowPartcipationRate (uint32_t elapsedTime) const
 	{
 		if (elapsedTime < 900) // if less than 15 minutes
 			return m_NumTunnelsAgreed < m_NumTunnelsDeclined; // 50% rate
@@ -136,7 +136,7 @@ namespace data
 			return 3*m_NumTunnelsAgreed < m_NumTunnelsDeclined; // 25% rate
 	}	
 
-	bool RouterProfile::IsLowReplyRate (int elapsedTime) const
+	bool RouterProfile::IsLowReplyRate (uint32_t elapsedTime) const
 	{
 		auto total = m_NumTunnelsAgreed + m_NumTunnelsDeclined;
 		if (elapsedTime < 300) // if less than 5 minutes
diff --git a/Profiling.h b/Profiling.h
index 93fb5be2..3a5a0844 100644
--- a/Profiling.h
+++ b/Profiling.h
@@ -42,8 +42,8 @@ namespace data
 			void UpdateTime ();
 
 			bool IsAlwaysDeclining () const { return !m_NumTunnelsAgreed && m_NumTunnelsDeclined >= 5; };
-			bool IsLowPartcipationRate (int elapsedTime) const;
-			bool IsLowReplyRate (int elapsedTime) const;
+			bool IsLowPartcipationRate (uint32_t elapsedTime) const;
+			bool IsLowReplyRate (uint32_t elapsedTime) const;
 			
 		private: