diff --git a/src/popupmenu.c b/src/popupmenu.c
index fdec5f3..6e9d826 100644
--- a/src/popupmenu.c
+++ b/src/popupmenu.c
@@ -461,7 +461,7 @@
     if (in_fuzzy)
 	ga = fuzzy_match_str_with_pos(text, leader);
     else
-	matched_start = STRNCMP(text, leader, leader_len) == 0;
+	matched_start = MB_STRNICMP(text, leader, leader_len) == 0;
 
     while (*ptr != NUL)
     {