diff --git a/samples/bluetooth/peripheral_hids/src/main.c b/samples/bluetooth/peripheral_hids/src/main.c
index bdb7f7fd8a7..cd5f22b640e 100644
--- a/samples/bluetooth/peripheral_hids/src/main.c
+++ b/samples/bluetooth/peripheral_hids/src/main.c
@@ -66,9 +66,10 @@ static void security_changed(struct bt_conn *conn, bt_security_t level,
 	bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
 
 	if (!err) {
-		printk("Security changed: %s level %u", addr, level);
+		printk("Security changed: %s level %u\n", addr, level);
 	} else {
-		printk("Security failed: %s level %u err %d", addr, level, err);
+		printk("Security failed: %s level %u err %d\n", addr, level,
+		       err);
 	}
 }
 
diff --git a/samples/bluetooth/peripheral_sc_only/src/main.c b/samples/bluetooth/peripheral_sc_only/src/main.c
index aa7c9fe9e5a..00fd0a88291 100644
--- a/samples/bluetooth/peripheral_sc_only/src/main.c
+++ b/samples/bluetooth/peripheral_sc_only/src/main.c
@@ -71,9 +71,10 @@ static void security_changed(struct bt_conn *conn, bt_security_t level,
 	bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
 
 	if (!err) {
-		printk("Security changed: %s level %u", addr, level);
+		printk("Security changed: %s level %u\n", addr, level);
 	} else {
-		printk("Security failed: %s level %u err %d", addr, level, err);
+		printk("Security failed: %s level %u err %d\n", addr, level,
+		       err);
 	}
 }