diff --git a/6to4_converter.py b/6to4_converter.py
index 9acaa66..811ac4c 100644
--- a/6to4_converter.py
+++ b/6to4_converter.py
@@ -43,3 +43,4 @@ def main():
     output = ipv4_to_ipv6(ipv4)
     print(output)
 
+main()