--- a/tests/test-demandimport
+++ b/tests/test-demandimport
@@ -8,7 +8,7 @@ import re
 rsub = re.sub
 def f(obj):
     l = repr(obj)
-    l = rsub("0x[0-9a-f]+", "0x?", l)
+    l = rsub("0x[0-9a-fA-F]+", "0x?", l)
     l = rsub("from '.*'", "from '?'", l)
     return l