diff --git a/src/System.Linq/src/System/Linq/Select.SpeedOpt.cs b/src/System.Linq/src/System/Linq/Select.SpeedOpt.cs
index b226a75abd79..b3d3b6fc43d9 100644
--- a/src/System.Linq/src/System/Linq/Select.SpeedOpt.cs
+++ b/src/System.Linq/src/System/Linq/Select.SpeedOpt.cs
@@ -171,7 +171,7 @@ private sealed partial class SelectRangeIterator<TResult> : Iterator<TResult>, I
             public SelectRangeIterator(int start, int end, Func<int, TResult> selector)
             {
                 Debug.Assert(start < end);
-                Debug.Assert((end - start) <= int.MaxValue);
+                Debug.Assert((uint)(end - start) <= (uint)int.MaxValue);
                 Debug.Assert(selector != null);
 
                 _start = start;