diff --git a/Utils/Timer Control.cpp b/Utils/Timer Control.cpp
index 830d0196..06617cbd 100644
--- a/Utils/Timer Control.cpp	
+++ b/Utils/Timer Control.cpp	
@@ -209,6 +209,10 @@ void CALLBACK TimeProc( UINT uID,	UINT uMsg, DWORD dwUser, DWORD dw1,	DWORD dw2
 
 				guiBaseJA2Clock += BASETIMESLICE;
 
+				// Terapevt suggested fix
+				if ((INT32)guiBaseJA2Clock < 0)
+					guiBaseJA2Clock = 0;
+
 				// detect overflow
 				if (uiOldClock > guiBaseJA2Clock)
 				{