diff --git a/src/cc65/.lclintrc b/src/cc65/.lclintrc
new file mode 100644
index 000000000..51fe9f0a8
--- /dev/null
+++ b/src/cc65/.lclintrc
@@ -0,0 +1,5 @@
++boolint
+-boolops
+-retvalint
+-retvalother
+-I../common