diff --git a/armi/tests/test_plugins.py b/armi/tests/test_plugins.py
index df3d61391..d242415dc 100644
--- a/armi/tests/test_plugins.py
+++ b/armi/tests/test_plugins.py
@@ -69,6 +69,7 @@ def test_exposeInterfaces(self):
 
         # each plugin should return a list
         self.assertIsInstance(results, list)
+        self.assertGreater(len(results))
         for result in results:
             # Make sure all elements in the list satisfy the constraints of the hookspec
             self.assertIsInstance(result, tuple)