diff --git a/tests/auc/gen_ts_55_205_test_sets/pdftxt_2_c.py b/tests/auc/gen_ts_55_205_test_sets/pdftxt_2_c.py
index b01a797..9df65b5 100755
--- a/tests/auc/gen_ts_55_205_test_sets/pdftxt_2_c.py
+++ b/tests/auc/gen_ts_55_205_test_sets/pdftxt_2_c.py
@@ -1,5 +1,4 @@
-#!/usr/bin/env python
-# FIXME: use python3 once buildslaves are updated.
+#!/usr/bin/env python3
 # Convert test sets pasted from 3GPP TS 55.205 to C code.
  
 # (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>