diff --git a/lib/libfetch/http.c b/lib/libfetch/http.c
index ca522a6bcb8..f80404d4e0b 100644
--- a/lib/libfetch/http.c
+++ b/lib/libfetch/http.c
@@ -875,7 +875,7 @@ http_parse_mtime(const char *p, time_t *mtime)
 	char locale[64], *r;
 	struct tm tm;
 
-	strncpy(locale, setlocale(LC_TIME, NULL), sizeof(locale));
+	strlcpy(locale, setlocale(LC_TIME, NULL), sizeof(locale));
 	setlocale(LC_TIME, "C");
 	r = strptime(p, "%a, %d %b %Y %H:%M:%S GMT", &tm);
 	/*