diff --git a/src/abstract_syntax_tree.rs b/src/abstract_syntax_tree.rs
index 70b4239..0b7164f 100644
--- a/src/abstract_syntax_tree.rs
+++ b/src/abstract_syntax_tree.rs
@@ -78,13 +78,13 @@ impl Ast {
 
 impl AstNode {
     pub fn new(value: char, parent_index: usize, is_leaf: bool, index_in_string: usize) -> Self {
-        return AstNode {
+        AstNode {
             char: value,
             sub_assets_indexes: Vec::new(),
             parent_index: Some(parent_index),
             is_leaf,
             index_in_string,
-        };
+        }
     }
 }
 
diff --git a/src/runtime.rs b/src/runtime.rs
index 1ba785e..ec27824 100644
--- a/src/runtime.rs
+++ b/src/runtime.rs
@@ -108,7 +108,7 @@ impl<'a> Runtime<'a> {
             if result.is_err() {
                 return Err(result.err().unwrap().to_string());
             }
-            buffer = buffer.replace("\r", "");
+            buffer = buffer.replace('\r', "");
             let mut vec = buffer.as_bytes().to_vec();
             vec.push(0);
             self.read_buffer = vec;