diff --git a/src/test_utils.rs b/src/test_utils.rs
index 5121b04..3526b49 100644
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -9,6 +9,12 @@ fn test_normalize_str() {
 
 #[test]
 fn test_normalize_first_name() {
+    let out = normalize_first_name("jpp jpp".to_string());
+    assert_eq!(out, "Jpp-Jpp");
+
+    let out = normalize_first_name("jean pierre".to_string());
+    assert_eq!(out, "Jean-Pierre");
+
     let out = normalize_first_name("JEAN-PIERRE".to_string());
     assert_eq!(out, "Jean-Pierre");
 
diff --git a/src/utils.rs b/src/utils.rs
index 49bfe68..9651adc 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -70,10 +70,12 @@ pub fn capitalize(s: &str) -> String {
     }
 }
 
+/// normalisation d'un prénom
 pub fn normalize_first_name(subject: String) -> String {
     subject
+        .trim()
         .to_lowercase()
-        .replace(' ', "")
+        .replace(' ', "-")
         .split('-')
         .map(capitalize)
         .collect::<Vec<String>>()