diff --git a/dropbear_install b/dropbear_install
index 46a52fe..3466673 100644
--- a/dropbear_install
+++ b/dropbear_install
@@ -86,6 +86,7 @@ build ()
 
   add_checked_modules "/drivers/net/"
   add_binary "rm"
+  add_binary "killall"
   add_binary "dropbear"
 
   cat <<SCRIPTEOF > ${TMPDIR}/cryptsetup_shell