diff --git a/test/blackbox-tests/test-cases/config/invalid-config-file.t b/test/blackbox-tests/test-cases/config/invalid-config-file.t
new file mode 100644
index 00000000000..76027422604
--- /dev/null
+++ b/test/blackbox-tests/test-cases/config/invalid-config-file.t
@@ -0,0 +1,3 @@
+  $ export XDG_CONFIG_HOME=$PWD
+  $ '(cache enabled)' > config
+  $ dune --version