diff --git a/server-ca/sni_challenge/Makefile b/server-ca/sni_challenge/Makefile
index 63bea9675..35cfac20d 100644
--- a/server-ca/sni_challenge/Makefile
+++ b/server-ca/sni_challenge/Makefile
@@ -12,4 +12,4 @@ _sni_support.so: sni_support_wrap.o sni_support.o
 	$(CC) -shared $^ -o $@
 
 clean:
-	rm -f $(targets)
+	rm -f $(targets) *.pyc
diff --git a/server-ca/sni_challenge/__init__.py b/server-ca/sni_challenge/__init__.py
new file mode 100644
index 000000000..e69de29bb