diff --git a/src/main/kotlin/com/example/demo/exceptions/GlobalExceptionHandler.kt b/src/main/kotlin/com/example/demo/exceptions/GlobalExceptionHandler.kt
index 02c0fb2..a3d86b8 100644
--- a/src/main/kotlin/com/example/demo/exceptions/GlobalExceptionHandler.kt
+++ b/src/main/kotlin/com/example/demo/exceptions/GlobalExceptionHandler.kt
@@ -16,13 +16,11 @@ import java.util.stream.Collectors
 class GlobalExceptionHandler : ResponseEntityExceptionHandler() {
 
     override fun handleMethodArgumentNotValid(ex: MethodArgumentNotValidException, headers: HttpHeaders, status: HttpStatusCode, request: WebRequest): ResponseEntity<Any>? {
-        val body: MutableMap<String, List<String?>> = HashMap()
+        val body: MutableMap<String, Map<String, String?>> = HashMap()
 
         val errors = ex.bindingResult
                 .fieldErrors
-                .stream()
-                .map { obj: FieldError -> obj.defaultMessage }
-                .collect(Collectors.toList())
+                .associate { obj: FieldError -> obj.field to obj.defaultMessage }
 
         body["errors"] = errors