diff --git a/README.md b/README.md
index 3b749e8..8e0a210 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ word embeddings. finalfrontier currently has the following features:
   * Models:
     - skip-gram (Mikolov et al., 2013)
     - structured skip-gram (Ling et al., 2015)
+    - directional skip-gram (Song et al., 2018)
     - dependency (Levy and Goldberg, 2014)
   * Noise contrastive estimation (Gutmann and Hyvärinen, 2012)
   * Subword representations (Bojanowski et al., 2016)
diff --git a/man/ff-train-skipgram.1.md b/man/ff-train-skipgram.1.md
index 8781b22..d5d3cfc 100644
--- a/man/ff-train-skipgram.1.md
+++ b/man/ff-train-skipgram.1.md
@@ -75,8 +75,9 @@ OPTIONS
 
 `--model` *MODEL*
 
-:   The model to use for training word embeddings. The choices here are
-    *skipgram* for the skip-gram model (Mikolov et al., 2013) and
+:   The model to use for training word embeddings. The choices here are:
+    *dirgram* for the directional skip-gram model (Song et al., 2018),
+    *skipgram* for the skip-gram model (Mikolov et al., 2013), and
     *structgram* for the stuctured skip-gram model (Ling et al. 2015).
     
     The structured skip-gram model takes the position of a context word