diff --git a/src/enums/MDTagRelationType.php b/src/enums/MDTagRelationType.php
index a323b93..3b1f332 100644
--- a/src/enums/MDTagRelationType.php
+++ b/src/enums/MDTagRelationType.php
@@ -40,7 +40,7 @@ enum MDTagRelationType implements MDValueEnumInterface, JsonSerializable {
     /**
      * Returns a value of this type based on an integer.
      *
-     * @param string $input Input to get a value from.
+     * @param integer $input Input to get a value from.
      *
      * @return MDTagRelationType
      */
@@ -88,7 +88,7 @@ enum MDTagRelationType implements MDValueEnumInterface, JsonSerializable {
     /**
      * Lists all available names.
      *
-     * @return array<string>
+     * @return array<integer>
      */
     public static function caseInts():array {
 
@@ -110,12 +110,12 @@ enum MDTagRelationType implements MDValueEnumInterface, JsonSerializable {
      */
     public function toInt():int {
 
-        return match(self) {
+        return match($this) {
             self::tag => 0,
             self::object_type => 1,
             self::material => 2,
             self::technique => 3,
-            default => throw new MDpageParameterNotFromListException("Unknown tag relation type"),
+            // default => throw new MDpageParameterNotFromListException("Unknown tag relation type"),
         };
 
     }