diff --git a/src/libcore/char.rs b/src/libcore/char.rs
index 8f3ecf0633cf..f507556909c8 100644
--- a/src/libcore/char.rs
+++ b/src/libcore/char.rs
@@ -147,7 +147,7 @@ pub fn to_digit(c: char, radix: uint) -> Option<uint> {
 #[inline]
 pub fn from_digit(num: uint, radix: uint) -> Option<char> {
     if radix > 36 {
-        fail!("from_digit: radix is to high (maximum 36)");
+        fail!("from_digit: radix is too high (maximum 36)");
     }
     if num < radix {
         unsafe {