diff --git a/config/boards/nanopi-r6s.csc b/config/boards/nanopi-r6s.conf
similarity index 98%
rename from config/boards/nanopi-r6s.csc
rename to config/boards/nanopi-r6s.conf
index 785c0fa0a64d..a22c1b85b006 100644
--- a/config/boards/nanopi-r6s.csc
+++ b/config/boards/nanopi-r6s.conf
@@ -17,8 +17,9 @@ function post_family_tweaks__nanopir6s_naming_udev_audios() {
 	display_alert "$BOARD" "Renaming NanoPi R6S HDMI audio" "info"
 
 	mkdir -p $SDCARD/etc/udev/rules.d/
+
 	cat <<- EOF > $SDCARD/etc/udev/rules.d/90-naming-audios.rules
-		SUBSYSTEM=="sound", ENV{ID_PATH}=="platform-hdmi0-sound", ENV{SOUND_DESCRIPTION}="HDMI0 Audio"'
+		SUBSYSTEM=="sound", ENV{ID_PATH}=="platform-hdmi0-sound", ENV{SOUND_DESCRIPTION}="HDMI0 Audio"
 	EOF
 }