diff --git a/src/enums/MDCustomReportFormat.php b/src/enums/MDCustomReportFormat.php
index 29c800d..ab4eb2e 100644
--- a/src/enums/MDCustomReportFormat.php
+++ b/src/enums/MDCustomReportFormat.php
@@ -9,7 +9,7 @@ declare(strict_types = 1);
 /**
  * Represents a format in which custom reports can be generated.
  */
-enum MDCustomReportFormat implements MDValueEnumInterface, JsonSerializable {
+enum MDCustomReportFormat implements JsonSerializable {
 
     case csv;
     case html;