diff --git a/guacamole/rootfs/etc/cont-init.d/30-folders.sh b/guacamole/rootfs/etc/cont-init.d/30-folders.sh
index b5c5a9e36..0597afdac 100644
--- a/guacamole/rootfs/etc/cont-init.d/30-folders.sh
+++ b/guacamole/rootfs/etc/cont-init.d/30-folders.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/with-contenv bashio
-# shellcheck = bash
+# shellcheck shell=bash
 
 mkdir -p /config/addons_config/guacamole/fonts