diff --git a/src/core/system.h b/src/core/system.h
index b298a25f9..75d785ecd 100644
--- a/src/core/system.h
+++ b/src/core/system.h
@@ -138,7 +138,8 @@ ALWAYS_INLINE_RELEASE TickCount ScaleTicksToOverclock(TickCount ticks)
   if (!g_settings.cpu_overclock_active)
     return ticks;
 
-  return static_cast<TickCount>((static_cast<u64>(static_cast<u32>(ticks)) * g_settings.cpu_overclock_numerator) /
+  return static_cast<TickCount>(((static_cast<u64>(static_cast<u32>(ticks)) * g_settings.cpu_overclock_numerator) +
+                                 (g_settings.cpu_overclock_denominator - 1)) /
                                 g_settings.cpu_overclock_denominator);
 }