diff --git a/application/core/ManiaControl.php b/application/core/ManiaControl.php
index 58401a04..af0d4181 100644
--- a/application/core/ManiaControl.php
+++ b/application/core/ManiaControl.php
@@ -334,7 +334,7 @@ class ManiaControl implements CommandListener, TimerListener {
 			// Yield for next tick
 			$loopEnd = microtime(true);
 
-			$sleepTime = (int)(1000 - $loopEnd + $loopStart);
+			$sleepTime = (int)(1000 - ($loopEnd - $loopStart) * 1000000);
 			if ($sleepTime > 0) {
 				usleep($sleepTime);
 			}