diff --git a/src/libstd/trie.rs b/src/libstd/trie.rs
index 50552fd75478..f4597f4b08e9 100644
--- a/src/libstd/trie.rs
+++ b/src/libstd/trie.rs
@@ -462,7 +462,7 @@ mod tests {
             m.insert(x, x / 2);
         }
 
-        let mut n = uint::max_value - 9999;
+        let mut n = uint::max_value - 10000;
         for m.each |k, v| {
             if n == uint::max_value - 5000 { break }
             assert!(n < uint::max_value - 5000);
@@ -499,7 +499,7 @@ mod tests {
             m.insert(x, x / 2);
         }
 
-        let mut n = uint::max_value;
+        let mut n = uint::max_value - 1;
         for m.each_reverse |k, v| {
             if n == uint::max_value - 5000 { break }
             assert!(n > uint::max_value - 5000);