diff --git a/setup.py b/setup.py
index 374d789..25e31c9 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@
         "smoke/replay/decoder/recv_prop/dstring.pyx",
         "smoke/replay/decoder/recv_prop/dvector.pyx",
         "smoke/replay/decoder/recv_prop/dvectorxy.pyx",
-        "smoke/replay/decoder/recv_prop/factory.pyx",
+        #"smoke/replay/decoder/recv_prop/factory.pyx",
         "smoke/replay/decoder/string_table.pyx",
         "smoke/replay/demo.pyx",
         "smoke/replay/dispatch.pyx",
diff --git a/smoke/io/const.py b/smoke/io/const.pyx
similarity index 100%
rename from smoke/io/const.py
rename to smoke/io/const.pyx