diff --git a/hello.py b/hello.py
index b732142..b2ba069 100644
--- a/hello.py
+++ b/hello.py
@@ -1 +1,2 @@
 print "hello"
+print unknown_var
diff --git a/hi.py b/hi.py
index bae1109..151d05d 100644
--- a/hi.py
+++ b/hi.py
@@ -1 +1,2 @@
 print "hi"
+print unknown_var