diff --git a/Src/OSD/SDL/Main.cpp b/Src/OSD/SDL/Main.cpp
index 4a0d0de..4bf4247 100644
--- a/Src/OSD/SDL/Main.cpp
+++ b/Src/OSD/SDL/Main.cpp
@@ -851,7 +851,7 @@ static void SuperSleepUntil(uint64_t target)
 
   // Compute the whole number of millis to sleep. Because OS sleep is not accurate,
   // we actually sleep for one less and will spin-wait for the final millisecond.
-  int64_t numWholeMillisToSleep = int64_t((target - time) * 1000 / s_perfCounterFrequency);
+  uint32_t numWholeMillisToSleep = uint32_t((target - time) * 1000 / s_perfCounterFrequency);
   numWholeMillisToSleep -= 1;
   if (numWholeMillisToSleep > 0)
   {