diff --git a/interfaces/cython/cantera/ck2cti.py b/interfaces/cython/cantera/ck2cti.py
index 6a5f014e4..f1c812ecf 100644
--- a/interfaces/cython/cantera/ck2cti.py
+++ b/interfaces/cython/cantera/ck2cti.py
@@ -1742,6 +1742,7 @@ class Parser(object):
                                         logging.info('Skipping unexpected species "{0}" while reading thermodynamics entry.'.format(label))
                                         thermo = []
                                         line, comment = readline()
+                                        current = []
                                         continue
                                     else:
                                         # Add a new species entry