diff --git a/treeLike_JCGAMMA.py b/treeLike_JCGAMMA.py
index e988dd7..c14e0ce 100644
--- a/treeLike_JCGAMMA.py
+++ b/treeLike_JCGAMMA.py
@@ -1,6 +1,6 @@
 ##################################
 # This script reads a nexus DNA matrix (through module readseq.py) and a newick tree
-# topology, and computes log-likelihood of the topology under Jukes Cantor model
+# topology, and computes log-likelihood of the topology under Jukes Cantor+GAMMA model
 ###################################