diff --git a/src/main.rs b/src/main.rs
index d2f46cf..5266346 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -31,13 +31,15 @@ fn compile(settings: &Settings) -> Option<(Vec<Func>, Vec<Declr>, Vec<BuiltinFun
     for src in settings.get_source().iter() {
         let code = src.code();
 
-        let mut diagnostics = Diagnostics::new(&settings, code);
+        let mut diagnostics = Diagnostics::new(&settings);
+        diagnostics.add_source_origin(code);
         
         if let Ok(mut tokens) = tokenize(code, &mut diagnostics) {
             let specs = crate::direct::resolve_directives(&mut tokens);
 
             // read source of every embedded file and tokenize
             for (idx, src) in specs.embedded_files() {
+                diagnostics.add_source_origin(src);
                 if let Ok(em_tokens) = tokenize(src, &mut diagnostics) {
                     for (idy, em_token) in em_tokens.into_iter().enumerate() {
                         tokens.insert(idx + idy, em_token.to_owned());
diff --git a/src/parser/data.rs b/src/parser/data.rs
index ae4fa67..5ab9b62 100644
--- a/src/parser/data.rs
+++ b/src/parser/data.rs
@@ -4,7 +4,7 @@ use crate::conf::Settings;
 use crate::token::{DebugInfo, DebugNotice, Token, MessageType};
 use crate::Prim;
 use core::panic;
-use std::collections::VecDeque;
+use std::collections::{VecDeque, HashMap};
 use std::collections::hash_map::DefaultHasher;
 use std::hash::{Hash, Hasher};
 
@@ -24,28 +24,36 @@ impl Default for LogLvl {
     }
 }
 
-pub struct Diagnostics<'a> {
+pub struct Diagnostics {
     /// terminating factor on error
-    err: Option<DebugNotice<'a>>,
+    err: Option<DebugNotice>,
     /// additional warning and informations
     /// all non critical
-    hints: Vec<DebugNotice<'a>>,
-    /// source string
-    source: &'a str,
+    hints: Vec<DebugNotice>,
+    /// source hash and source string
+    source: HashMap<u64, String>,
     /// flags
     loglvl: LogLvl,
 }
 
-impl<'a> Diagnostics<'a> {
-    pub fn new(settings: &Settings, source: &'a str) -> Diagnostics<'a> {
+impl Diagnostics {
+    pub fn new(settings: &Settings) -> Diagnostics {
         Self {
             err: None,
             hints: vec![],
-            source,
+            source: HashMap::new(),
             loglvl: settings.loglvl()
         }
     }
 
+    pub fn add_source_origin<A>(&mut self, source: A) where A: Into<String> + Hash {
+        let mut hasher = DefaultHasher::new();
+        source.hash(&mut hasher);
+        let origin = hasher.finish();
+
+        self.source.insert(origin, source.into());
+    }
+
     pub fn set_err<T, S>(&mut self, source: &S, message: &'static crate::token::DebugMsg, ext: T)
     where
         T: Into<String>,
@@ -62,7 +70,7 @@ impl<'a> Diagnostics<'a> {
             info,
             msg: message,
             ext: ext.into(),
-            source: self.source,
+            source: self.source.get(&info.origin).unwrap().clone(),
         });
     }
 
@@ -77,12 +85,12 @@ impl<'a> Diagnostics<'a> {
             info,
             msg: message,
             ext: ext.into(),
-            source: self.source,
+            source: self.source.get(&info.origin).unwrap().clone(),
         });
     }
 }
 
-impl<'a> std::fmt::Display for Diagnostics<'a> {
+impl std::fmt::Display for Diagnostics {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         for hint in self.hints.iter() {
             match hint.msg.typ {
diff --git a/src/token/mod.rs b/src/token/mod.rs
index 94c87ab..301a97b 100644
--- a/src/token/mod.rs
+++ b/src/token/mod.rs
@@ -1,5 +1,6 @@
 use colored::{ColoredString, Colorize};
-use std::{collections::VecDeque};
+use std::{collections::{VecDeque, hash_map::DefaultHasher}, hash::Hasher};
+use std::hash::Hash;
 
 use crate::parser::data::Diagnostics;
 
@@ -420,16 +421,16 @@ pub struct DebugMsg {
     pub msg: &'static str,
 }
 
-pub struct DebugNotice<'a> {
+pub struct DebugNotice {
     pub info: DebugInfo,
     /// generic error description
     pub msg: &'static DebugMsg,
     /// extra message which is case specific
     pub ext: String,
-    pub source: &'a str,
+    pub source: String,
 }
 
-impl<'a> std::fmt::Display for DebugNotice<'a> {
+impl std::fmt::Display for DebugNotice {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         // write header as:
         // `Error (56) some syntax error message in line 5:`
@@ -472,7 +473,9 @@ pub struct DebugInfo {
     /// index in source string where the token ends  in the current line
     pub end: usize,
     /// line number where the line in which the token is begins
-    pub line: usize
+    pub line: usize,
+    /// string url of the source origin
+    pub origin: u64
 }
 
 #[derive(Debug)]
@@ -623,6 +626,9 @@ pub fn tokenize<'a>(source: &'a str, diagnostics: &mut Diagnostics) -> Result<Ve
 
     for cap in TOKEN_REGEX.captures_iter(source.as_ref()) {
         let mut enumerator = cap.iter().enumerate();
+        let mut hasher = DefaultHasher::new();
+        source.hash(&mut hasher);
+        let origin = hasher.finish();
         loop {
             let next = enumerator.next();
             if next.is_none() {
@@ -648,6 +654,7 @@ pub fn tokenize<'a>(source: &'a str, diagnostics: &mut Diagnostics) -> Result<Ve
                     start: mat.start() - line_start,
                     end: mat.end() - line_start,
                     line: line_count,
+                    origin
                 };
 
                 tokens.push_back(match i {