diff --git a/data/lm/generate_package.py b/data/lm/generate_package.py
index b4ab0eb8..fa172645 100644
--- a/data/lm/generate_package.py
+++ b/data/lm/generate_package.py
@@ -4,6 +4,7 @@ from __future__ import absolute_import, division, print_function
 import argparse
 import shutil
 
+import ds_ctcdecoder
 from deepspeech_training.util.text import Alphabet, UTF8Alphabet
 from ds_ctcdecoder import Scorer, Alphabet as NativeAlphabet