diff --git a/test/blackbox-tests/jbuild b/test/blackbox-tests/jbuild
index 8e6e9772..267fe68b 100644
--- a/test/blackbox-tests/jbuild
+++ b/test/blackbox-tests/jbuild
@@ -318,3 +318,14 @@
      (progn
       (run ${exe:cram.exe} run.t)
       (diff? run.t run.t.corrected)))))))
+
+(alias
+ ((name runtest)
+  (deps ((files_recursively_in test-cases/findlib)))
+  (action
+   (chdir test-cases/findlib
+    (setenv OCAMLPATH findlib-packages
+     (setenv JBUILDER ${bin:jbuilder}
+      (progn
+       (run ${exe:cram.exe} run.t)
+       (diff? run.t run.t.corrected))))))))
diff --git a/test/blackbox-tests/test-cases/findlib/foo.opam b/test/blackbox-tests/test-cases/findlib/foo.opam
new file mode 100644
index 00000000..e69de29b
diff --git a/test/blackbox-tests/test-cases/findlib/run.t b/test/blackbox-tests/test-cases/findlib/run.t
new file mode 100644
index 00000000..7baa061f
--- /dev/null
+++ b/test/blackbox-tests/test-cases/findlib/run.t
@@ -0,0 +1 @@
+  $ $JBUILDER external-lib-deps --root . -j1 --display quiet @install
diff --git a/test/blackbox-tests/test-cases/findlib/src/jbuild b/test/blackbox-tests/test-cases/findlib/src/jbuild
new file mode 100644
index 00000000..912556d1
--- /dev/null
+++ b/test/blackbox-tests/test-cases/findlib/src/jbuild
@@ -0,0 +1,4 @@
+(library
+ ((name        foo)
+  (public_name foo)
+  (libraries   (a b c))))