diff --git a/scripts/unicode.py b/scripts/unicode.py
index 1da9036..c7e52ba 100755
--- a/scripts/unicode.py
+++ b/scripts/unicode.py
@@ -585,6 +585,8 @@ def emit_module(
         module.write(
             """
 pub mod charwidth {
+    use core::convert::TryFrom;
+
     /// Returns the [UAX #11](https://www.unicode.org/reports/tr11/) based width of `c` by
     /// consulting a multi-level lookup table.
     /// If `is_cjk == true`, ambiguous width characters are treated as double width; otherwise,