diff --git a/src/DBAL/Platform/PostgreSQLPlatform.php b/src/DBAL/Platform/PostgreSQLPlatform.php
index c0688dd..53df92d 100644
--- a/src/DBAL/Platform/PostgreSQLPlatform.php
+++ b/src/DBAL/Platform/PostgreSQLPlatform.php
@@ -84,7 +84,7 @@ public function quoteEnumLabel(mixed $label): int|string
         }
     }
 
-    protected function initializeDoctrineTypeMappings()
+    protected function initializeDoctrineTypeMappings(): void
     {
         parent::initializeDoctrineTypeMappings();
 
diff --git a/src/DBAL/Schema/SchemaDiff.php b/src/DBAL/Schema/SchemaDiff.php
index 83d800e..0bfa63c 100644
--- a/src/DBAL/Schema/SchemaDiff.php
+++ b/src/DBAL/Schema/SchemaDiff.php
@@ -67,6 +67,7 @@ public function toSql(AbstractPlatform $platform): array
 
         foreach ($this->getCreatedTypes() as $type) {
             $sql[] = $platform->getCreateTypeSql($type);
+            $sql[] = $platform->getCommentOnTypeSql($type);
         }
 
         foreach ($this->getAlteredTypes() as $alterTypeArray) {