diff --git a/README.md b/README.md
index f9cb9cf..a4a6c25 100644
--- a/README.md
+++ b/README.md
@@ -20,4 +20,5 @@ The list of Stella APIs is below.
 
 ## contact
 email: starlab@os.korea.ac.kr
+
 Stella Project page: http://stella.korea.ac.kr