diff --git a/test/blackbox-tests/test-cases/gen-opam-install-file/c.c b/test/blackbox-tests/test-cases/gen-opam-install-file/c.c
new file mode 100644
index 00000000..f19bfb31
--- /dev/null
+++ b/test/blackbox-tests/test-cases/gen-opam-install-file/c.c
@@ -0,0 +1,4 @@
+
+int foo () {
+  return 0;
+}
diff --git a/test/blackbox-tests/test-cases/gen-opam-install-file/cpp.cpp b/test/blackbox-tests/test-cases/gen-opam-install-file/cpp.cpp
new file mode 100644
index 00000000..a4957daa
--- /dev/null
+++ b/test/blackbox-tests/test-cases/gen-opam-install-file/cpp.cpp
@@ -0,0 +1,3 @@
+int bar() {
+  return 0;
+}
diff --git a/test/blackbox-tests/test-cases/gen-opam-install-file/dune b/test/blackbox-tests/test-cases/gen-opam-install-file/dune
index c8d19095..a6799fd1 100644
--- a/test/blackbox-tests/test-cases/gen-opam-install-file/dune
+++ b/test/blackbox-tests/test-cases/gen-opam-install-file/dune
@@ -4,6 +4,8 @@
  (install_c_headers cfoo)
  (js_of_ocaml (javascript_files foo.js))
  (wrapped false)
+ (c_names c)
+ (cxx_names cpp) 
  (public_name foo))
 
 (library
diff --git a/test/blackbox-tests/test-cases/gen-opam-install-file/run.t b/test/blackbox-tests/test-cases/gen-opam-install-file/run.t
index 17332f07..40fc99c5 100644
--- a/test/blackbox-tests/test-cases/gen-opam-install-file/run.t
+++ b/test/blackbox-tests/test-cases/gen-opam-install-file/run.t
@@ -27,6 +27,7 @@
     "_build/install/default/lib/foo/foo.mli" {"foo.mli"}
     "_build/install/default/lib/foo/foo.ml" {"foo.ml"}
     "_build/install/default/lib/foo/foo.cma" {"foo.cma"}
+    "_build/install/default/lib/foo/libfoo_stubs$ext_lib" {"libfoo_stubs$ext_lib"}
     "_build/install/default/lib/foo/foo.cmxa" {"foo.cmxa"}
     "_build/install/default/lib/foo/foo$ext_lib" {"foo$ext_lib"}
     "_build/install/default/lib/foo/foo.cmxs" {"foo.cmxs"}
@@ -53,3 +54,6 @@
   doc: [
     "_build/install/default/doc/foo/odoc-pages/doc.mld" {"odoc-pages/doc.mld"}
   ]
+  stublibs: [
+    "_build/install/default/lib/stublibs/dllfoo_stubs$ext_dll"
+  ]