diff --git a/tool/clean_tree.sh b/tool/clean_tree.sh
index 1b0d70eca..f4948b2a4 100755
--- a/tool/clean_tree.sh
+++ b/tool/clean_tree.sh
@@ -5,4 +5,5 @@ SRC_FOLDERS="src src/classic src/ble src/ble/gatt-service 3rd-party/bluedroid/en
 for folder in $SRC_FOLDERS
 do
 	rm -f $BTSTACK_ROOT/$folder/*.o
+	rm -f $BTSTACK_ROOT/$folder/*.d
 done