diff --git a/source/duke3d/src/game.h b/source/duke3d/src/game.h
index 9735115e4..b8128bd60 100644
--- a/source/duke3d/src/game.h
+++ b/source/duke3d/src/game.h
@@ -326,7 +326,7 @@ static inline int32_t gameHandleEvents(void)
 
 static inline int32_t calc_smoothratio_demo(ClockTicks totalclk, ClockTicks ototalclk)
 {
-    int32_t rfreq = (refreshfreq != -1 ? refreshfreq : 60);
+    int32_t rfreq = tabledivide64((refreshfreq != -1 ? refreshfreq : 60) * TICRATE, timerGetClockRate());
     uint64_t elapsedFrames = tabledivide64(((uint64_t) (totalclk - ototalclk).toScale16()) * rfreq, 65536*TICRATE);
 #if 0
     //POGO: additional debug info for testing purposes