diff --git a/tests/functional/syntax/test_constants.py b/tests/functional/syntax/test_constants.py
index 5937884181..4d868fa52a 100644
--- a/tests/functional/syntax/test_constants.py
+++ b/tests/functional/syntax/test_constants.py
@@ -310,6 +310,13 @@ def foo(): nonpayable
 
 FOO: constant(Foo) = Foo(0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF)
     """,
+    """
+interface Foo:
+    def foo(): nonpayable
+
+FOO: constant(Foo) = Foo(BAR)
+BAR: constant(address) = 0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF
+    """,
 ]