diff --git a/tests/regression/apparmor/posix_mq_rcv.c b/tests/regression/apparmor/posix_mq_rcv.c
index f9ffc4d7e..b9702307d 100644
--- a/tests/regression/apparmor/posix_mq_rcv.c
+++ b/tests/regression/apparmor/posix_mq_rcv.c
@@ -197,7 +197,7 @@ void receive(enum notify_options notify, mqd_t mqd)
 
 int main(int argc, char *argv[])
 {
-	char opt = 0;
+	int opt = 0;
 	enum notify_options notify = DO_NOT_NOTIFY;
 	mqd_t mqd;
 	char *client = NULL;
diff --git a/tests/regression/apparmor/sysv_mq_rcv.c b/tests/regression/apparmor/sysv_mq_rcv.c
index 903e58d62..3fa1361be 100644
--- a/tests/regression/apparmor/sysv_mq_rcv.c
+++ b/tests/regression/apparmor/sysv_mq_rcv.c
@@ -71,7 +71,7 @@ static void usage(char *prog_name, char *msg)
 
 int main(int argc, char *argv[])
 {
-	char opt = 0;
+	int opt = 0;
 	char *client = NULL;
 	int uid;
 	int qid;