diff --git a/support/testing/tests/package/test_micropython.py b/support/testing/tests/package/test_micropython.py
index 0ecd4790bd..371deb2978 100644
--- a/support/testing/tests/package/test_micropython.py
+++ b/support/testing/tests/package/test_micropython.py
@@ -7,6 +7,7 @@ class TestMicroPython(infra.basetest.BRTest):
     config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
         f"""
         BR2_PACKAGE_MICROPYTHON=y
+        BR2_PACKAGE_MICROPYTHON_LIB=y
         BR2_ROOTFS_OVERLAY="{infra.filepath("tests/package/test_micropython/rootfs-overlay")}"
         BR2_TARGET_ROOTFS_CPIO=y
         # BR2_TARGET_ROOTFS_TAR is not set
@@ -64,5 +65,15 @@ class TestMicroPython(infra.basetest.BRTest):
         output = self.run_upy_code(py_code)
         self.assertEqual(output[0], expected_output)
 
-        # Finally, Check a small script can execute.
+        # Check a small script can execute.
         self.assertRunOk("/root/mandel.py", timeout=10)
+
+        # Check we can use a micropython-lib module.
+        msg = "Hello Buildroot!"
+        filename = "file.txt"
+        gz_filename = f"{filename}.gz"
+        self.assertRunOk(f"echo '{msg}' > {filename}")
+        self.assertRunOk(f"gzip {filename}")
+        out, ret = self.emulator.run(f"/root/zcat.py {gz_filename}")
+        self.assertEqual(ret, 0)
+        self.assertEqual(out[0], msg)
diff --git a/support/testing/tests/package/test_micropython/rootfs-overlay/root/zcat.py b/support/testing/tests/package/test_micropython/rootfs-overlay/root/zcat.py
new file mode 100755
index 0000000000..3b8c60bdd1
--- /dev/null
+++ b/support/testing/tests/package/test_micropython/rootfs-overlay/root/zcat.py
@@ -0,0 +1,15 @@
+#! /usr/bin/env micropython
+
+import gzip
+import sys
+
+
+def main(fname):
+    with open(fname, "rb") as f:
+        with gzip.GzipFile(fileobj=f) as g:
+            s = g.read()
+            print(s.decode("UTF-8"), end="")
+
+
+if __name__ == "__main__":
+    main(sys.argv[1])