diff --git a/test/test_utils.py b/test/test_utils.py
index 89a4ae3..d830536 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -42,7 +42,7 @@ def test_sanitize_as_empty_string():
 
 def test_gen_co_author():
     arg = utils.gen_co_author('kiryto <black.swordsman@aincrad.com>')
-    if not arg == "Co-authored-by: kiryto <black.swordsman@aincrad.com>":
+    if not arg == "\nCo-authored-by: kiryto <black.swordsman@aincrad.com>":
         raise AssertionError()
 
     arg2 = utils.gen_co_author('')
diff --git a/utils.py b/utils.py
index 3eeaacc..2b8e277 100644
--- a/utils.py
+++ b/utils.py
@@ -34,7 +34,7 @@ def get_context():
 def gen_co_author(co_author):
     if co_author is '':
         return ''
-    return "Co-authored-by: %s" % co_author
+    return "\nCo-authored-by: %s" % co_author
 
 
 def create_file(convention_name, dont_create=False):