diff --git a/src/entrypoint.sh b/src/entrypoint.sh
index 378fb57293e7b9f5862c63d212cfedcf0645a2fe..943b88259fed2fb987af16da1f448feefd7243dd 100755
--- a/src/entrypoint.sh
+++ b/src/entrypoint.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 inotifywait -e close_write,moved_to,create -m $CONFIG_DIR |
 while read -r directory events filename; do
   killall -SIGHUP quasselcore