diff --git a/lib/des/ui.c b/lib/des/ui.c
index b79994bdb..09a82dca6 100644
--- a/lib/des/ui.c
+++ b/lib/des/ui.c
@@ -128,7 +128,6 @@ read_string(const char *preprompt, const char *prompt,
 int
 UI_UTIL_read_pw_string(char *buf, int length, char *prompt, int verify)
 {
-    size_t plen;
     int ret;
 
     ret = read_string("", prompt, buf, length, 0);