diff --git a/term/tty.c b/term/tty.c
index d782d40..05d1cb0 100644
--- a/term/tty.c
+++ b/term/tty.c
@@ -51,7 +51,7 @@
 static void apply_code_to_vmode(struct tty_format_buf *fmt)
 {
 	const char *modifier = fmt->buf;
-	uint64_t mod_hash = b_hash_string(modifier);
+	uint64_t mod_hash = b_hash_cstr(modifier);
 
 	if (COMPARE_MOD_NAME(modifier, "black", mod_hash, MOD_HASH_BLACK)) {
 		fmt->vmode.v_fg.c_mode = B_TTY_COLOUR_16;