diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index 009bc5f..548b49a 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -556,7 +556,7 @@
 {
     /* Used to keep track of digits, decimal, and remainder. */
     Py_ssize_t d_pos = d_start;
-    const enum PyUnicode_Kind kind = writer->kind;
+    const unsigned int kind = writer->kind;
     const void *data = writer->data;
     Py_ssize_t r;