diff --git a/bin/obmc_ser_num b/bin/obmc_ser_num
index 6d2efeb..96fa7e0 100755
--- a/bin/obmc_ser_num
+++ b/bin/obmc_ser_num
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 r"""
 This program will get the system serial number from an OBMC machine and print it to stdout.