diff --git a/src/lib.rs b/src/lib.rs
old mode 100755
new mode 100644
index d3525c4..98e276c
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -152,6 +152,7 @@ impl<'a> Tree<'a> {
         }
     }
 
+    #[allow(clippy::missing_const_for_fn)]
     pub fn block(mut self, block: Block<'a>) -> Self {
         self.block = Some(block);
         self