diff --git a/src/parser.rs b/src/parser.rs
index 381fb10..0b0f1c0 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -25,6 +25,12 @@ pub mod parser {
             if let Ok(lines) = self.read_lines(&self.filepath) {
                 for line in lines {
                     if let Ok(phonenumber) = line {
+                        let contains_letters = phonenumber.chars().any(|c| c.is_alphabetic());
+
+                        if contains_letters {
+                            continue;
+                        }
+
                         let myobj: SomeObject = SomeObject {
                             value: phonenumber
                         };
@@ -111,12 +117,19 @@ pub mod parser {
             println!("Unparsed: {}", unparsed);
 
             let mut parsed: String = String::new();
+            let mychars = unparsed.chars();
 
             for i in 0..unparsed.len() {
-                let mychar: char = unparsed.chars().nth(i).unwrap();
+                let mychar_wrap = mychars.clone().nth(i);
 
-                if mychar.is_numeric(){
-                    parsed.push(mychar);
+                if let None = mychar_wrap {
+                    continue;
+                }
+
+                let mychar = mychar_wrap.unwrap();
+
+                if mychar.is_numeric() {
+                    parsed.push(mychar.clone());
                 }
             }