diff --git a/setup.py b/setup.py
index 54471cf..87f6cc5 100644
--- a/setup.py
+++ b/setup.py
@@ -178,7 +178,7 @@
         if not any('source ~/.longbow/bash_completion'
                    in bashline for bashline in BASHFILE.readlines()):
 
-            BASHFILE.write('source ~/.longbow/bash_completion')
+            BASHFILE.write('source ~/.longbow/bash_completion\n')
 
 except IOError: