diff --git a/preparator.py b/preparator.py
index ab6ac04..26ad0c5 100644
--- a/preparator.py
+++ b/preparator.py
@@ -510,7 +510,7 @@ def get_pair_features(pair, mentions_dict, lemma2synonyms,
     features.append(neighbouring_sentence(ante, ana))
     features.append(cousin_sentence(ante, ana))
     features.append(distant_sentence(ante, ana))
-    features.append(flat_gender_agreement(ante, ana))
+    features.extend(flat_gender_agreement(ante, ana))
     features.append(left_match(ante, ana))
     features.append(right_match(ante, ana))
     features.append(abbrev2(ante, ana))