diff --git a/src/Makefile.am b/src/Makefile.am
index 2a65bfba..6490db83 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -46,7 +46,7 @@ address_parser_test_CFLAGS = $(CFLAGS_O3)
 address_parser_SOURCES = address_parser_cli.c json_encode.c linenoise/linenoise.c
 address_parser_LDADD = sparkey/libsparkey.la libscanner.la libpostal.la
 address_parser_CFLAGS = $(CFLAGS_O3)
-language_classifier_train_SOURCES = language_classifier_train.c language_classifier.c language_features.c language_classifier_io.c logistic_regression_trainer.c logistic_regression.c logistic.c matrix.c sparse_matrix.c sparse_matrix_utils.c features.c minibatch.c float_utils.c stochastic_gradient_descent.c normalize.c transliterate.c trie.c trie_search.c trie_utils.c address_dictionary.c string_utils.c file_utils.c utf8proc/utf8proc.c unicode_scripts.c
+language_classifier_train_SOURCES = language_classifier_train.c language_classifier.c language_features.c language_classifier_io.c logistic_regression_trainer.c logistic_regression.c logistic.c matrix.c sparse_matrix.c sparse_matrix_utils.c features.c minibatch.c float_utils.c stochastic_gradient_descent.c normalize.c transliterate.c trie.c trie_search.c trie_utils.c address_dictionary.c string_utils.c file_utils.c utf8proc/utf8proc.c unicode_scripts.c shuffle.c
 language_classifier_train_LDADD = libscanner.la
 language_classifier_train_CFLAGS = $(CFLAGS_O3)
 language_classifier_SOURCES = language_classifier_cli.c language_classifier.c language_features.c logistic_regression.c logistic.c matrix.c sparse_matrix.c features.c minibatch.c float_utils.c normalize.c transliterate.c trie.c trie_search.c trie_utils.c address_dictionary.c string_utils.c file_utils.c utf8proc/utf8proc.c unicode_scripts.c