diff --git a/ChangeLog b/ChangeLog
index 2cd0a1fe..aeb2e8d0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2008-01-01  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* src/useradd.c: Avoid ?: construct without the middle term.
+
 2008-01-01  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* libmisc/copydir.c, src/usermod.c, lib/prototypes.h: The uid and
diff --git a/src/useradd.c b/src/useradd.c
index e591e1c4..5ae62d6d 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -1535,7 +1535,10 @@ static void create_mail (void)
 	mode_t mode;
 
 	if (strcasecmp (create_mail_spool, "yes") == 0) {
-		spool = getdef_str ("MAIL_DIR") ? : "/var/mail";
+		spool = getdef_str ("MAIL_DIR");
+		if (NULL == spool) {
+			spool = "/var/mail";
+		}
 		file = alloca (strlen (spool) + strlen (user_name) + 2);
 		sprintf (file, "%s/%s", spool, user_name);
 		fd = open (file, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, 0);