diff --git a/tests/subsys/fs/lib_link/app.overlay b/tests/subsys/fs/lib_link/app.overlay
new file mode 100644
index 00000000000..bdff6e4da08
--- /dev/null
+++ b/tests/subsys/fs/lib_link/app.overlay
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2023 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	ramdisk0 {
+		compatible = "zephyr,ram-disk";
+		disk-name = "RAM";
+		sector-size = <512>;
+		sector-count = <80>;
+	};
+};