diff --git a/src/main/kotlin/main/Main.kt b/src/main/kotlin/main/Main.kt
index 2e643dd..73c653d 100644
--- a/src/main/kotlin/main/Main.kt
+++ b/src/main/kotlin/main/Main.kt
@@ -172,7 +172,7 @@ fun selectFile(allowedExtensions: Set<String>, onFileSelected: (String) -> Unit)
         val filePath = "$selectedDirectory$selectedFile"
 
         // Vérifier si l'extension est autorisée
-        val fileExtension = File(filePath).extension.toLowerCase()
+        val fileExtension = File(filePath).extension.lowercase()
         if (allowedExtensions.contains(fileExtension)) {
             println("Opening: $filePath")
             onFileSelected(filePath)