diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 3765b54..9239aa8 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -150,10 +150,10 @@ impl NumberParser {
         }
     }
 
-    async fn remove_some_data(&self, unparsed: &String) -> String {
+    async fn remove_some_data(&self, unparsed: &str) -> String {
         let mut parsed: String = String::new();
 
-        for (_, ch) in unparsed.chars().enumerate() {
+        for ch in unparsed.chars() {
             if ch == ' ' {
                 continue;
             } else {