diff --git a/tool/clean_tree.sh b/tool/clean_tree.sh
index 66fa62b80..1b0d70eca 100755
--- a/tool/clean_tree.sh
+++ b/tool/clean_tree.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 DIR=`dirname $0`
 BTSTACK_ROOT=$DIR/../
-SRC_FOLDERS="src src/classic src/ble src/ble/gatt-service 3rd-party/bluedroid/encoder/srce 3rd-party/bluedroid/decoder/srce 3rd-party/hxcmod-player 3rd-party/hxcmod-player/mod"
+SRC_FOLDERS="src src/classic src/ble src/ble/gatt-service 3rd-party/bluedroid/encoder/srce 3rd-party/bluedroid/decoder/srce 3rd-party/hxcmod-player 3rd-party/hxcmod-player/mods"
 for folder in $SRC_FOLDERS
 do
 	rm -f $BTSTACK_ROOT/$folder/*.o