diff --git a/ctabus/internal/echo_if_exists.sh b/ctabus/internal/echo_if_exists.sh
index 0dbb99b..2d5080a 100755
--- a/ctabus/internal/echo_if_exists.sh
+++ b/ctabus/internal/echo_if_exists.sh
@@ -1,4 +1,3 @@
-#!/system/xbin/ash
 if [ -e $2 ]; then
    echo -n $1 > $2
 fi
diff --git a/ctabus/internal/notification.py b/ctabus/internal/notification.py
index cdc0fd4..be3bc4d 100755
--- a/ctabus/internal/notification.py
+++ b/ctabus/internal/notification.py
@@ -83,7 +83,7 @@ class NotificationManager:
             "--priority",
             "high",
             "--on-delete",
-            "{} {} {}".format(
+            "dash {} {} {}".format(
                 *map(
                     shlex.quote,
                     (