diff --git a/interfaces/cython/cantera/examples/kinetics/extract_submechanism.py b/interfaces/cython/cantera/examples/kinetics/extract_submechanism.py
index 7d05a978e..5d8a573ad 100644
--- a/interfaces/cython/cantera/examples/kinetics/extract_submechanism.py
+++ b/interfaces/cython/cantera/examples/kinetics/extract_submechanism.py
@@ -38,7 +38,7 @@ print('Species: {0}'.format(', '.join(S.name for S in species)))
 all_reactions = ct.Reaction.listFromFile('gri30.xml')
 reactions = []
 
-print '\nReactions:'
+print('\nReactions:')
 for R in all_reactions:
     if not all(reactant in species_names for reactant in R.reactants):
         continue