diff --git a/announcement.gemspec b/announcement.gemspec
index 1a6967a..b1e565d 100644
--- a/announcement.gemspec
+++ b/announcement.gemspec
@@ -100,7 +100,7 @@ if old_gemfile_text != new_gemfile_text
     Bundler.with_clean_env do
         puts env_pwd
         puts mode
-        exec("cd #{env_pwd} && env -i HOME=\"$HOME\" bash -l -c \"#{all_command}\" && screen -d -m -S auto_reopen_#{dir_name} #{watch_dog_cmd} ")
+        exec("cd #{env_pwd} && env -i HOME=\"$HOME\" bash -l -c \"#{all_command}\" ; screen -d -m -S auto_reopen_#{dir_name} #{watch_dog_cmd} ")
     end
   end
   now_priority = Thread.current.priority.to_i