diff --git a/examples/aliases.csn b/examples/aliases.csn
index da80878..54bef63 100644
--- a/examples/aliases.csn
+++ b/examples/aliases.csn
@@ -7,6 +7,7 @@
     (cmp res0 138 (ne? (fault "assert failed")))
     (halt)
     (sym wwww r0)
+    (sym q r7)
 
     (proc my-add a b ; give arguments names
         (sym q r7)
@@ -17,4 +18,6 @@
         (add q FOO)
         (ret q)
     )
+
+    (add wwww wwww) ; test that it is still defined
 )