diff --git a/tests/sources/tcltk-86.py b/tests/sources/tcltk-86.py
index 42a226d..4ff04bb 100644
--- a/tests/sources/tcltk-86.py
+++ b/tests/sources/tcltk-86.py
@@ -1,8 +1,11 @@
 import tkinter
 import _tkinter
 
-lib = tkinter.Tk().getvar('tk_version')
 header = _tkinter.TK_VERSION
+lib = tkinter.Tk().getvar('tk_version')
+
+print('header version=' + header)
+print('lib version=' + lib)
 
 if lib != '8.6' or header != '8.6':
   exit(1)