diff --git a/Source/Loop/LoopQueue.NT.cpp b/Source/Loop/LoopQueue.NT.cpp
index ebe2e3a7..64d6c25e 100644
--- a/Source/Loop/LoopQueue.NT.cpp
+++ b/Source/Loop/LoopQueue.NT.cpp
@@ -653,12 +653,20 @@ namespace Aurora::Loop
         else
         {
             auto now = AuTime::CurrentInternalClockMS();
-            if (timeout && timeout <= now)
-            {
-                return false;
-            }
+            AuUInt sleepDelta;
 
-            auto sleepDelta = timeout - now;
+            if (timeout)
+            {
+                if (timeout <= now)
+                {
+                    return false;
+                }
+                sleepDelta = timeout - now;
+            }
+            else
+            {
+                sleepDelta = 0;
+            }
 
             if (this->bIsWinLoop_)
             {