diff --git a/tests/test_1doc.py b/tests/test_1doc.py
index 43ceb692..b1aa6137 100644
--- a/tests/test_1doc.py
+++ b/tests/test_1doc.py
@@ -1746,6 +1746,44 @@ def test_decl(self):
         doc = WDL.parse_document(doc)
         doc.typecheck()
 
+        doc = r"""
+        version 1.0
+
+        workflow UsePerson {
+            Person p
+        }
+
+        struct Person {
+            String name
+            Array[Person] circular
+        }
+        """
+        doc = WDL.parse_document(doc)
+        with self.assertRaises(WDL.Error.CircularDependencies):
+            doc.typecheck()
+
+        doc = r"""
+        version 1.0
+
+        workflow UsePerson {
+            Person p
+        }
+
+        struct Person {
+            String name
+            Array[Car] cars
+        }
+
+        struct Car {
+            String make
+            String model
+            Person owner
+        }
+        """
+        doc = WDL.parse_document(doc)
+        with self.assertRaises(WDL.Error.CircularDependencies):
+            doc.typecheck()
+
     def test_import(self):
         doc = r"""
         version 1.0