diff --git a/models/classes/resources/Service/ClassMetadataCopier.php b/models/classes/resources/Service/ClassMetadataCopier.php
index 4e745846aa..a0efeaac6a 100644
--- a/models/classes/resources/Service/ClassMetadataCopier.php
+++ b/models/classes/resources/Service/ClassMetadataCopier.php
@@ -26,6 +26,7 @@
 
 use core_kernel_classes_Class;
 use core_kernel_classes_Property;
+use oat\generis\model\GenerisRdf;
 use oat\generis\model\OntologyRdfs;
 use oat\tao\model\resources\Contract\ClassMetadataCopierInterface;
 use oat\tao\model\resources\Contract\ClassMetadataMapperInterface;
@@ -71,6 +72,13 @@ private function copyProperty(
         $newProperty->removePropertyValues($newProperty->getProperty(OntologyRdfs::RDFS_DOMAIN));
         $newProperty->setDomain($destinationClass);
 
+        $this->skipAlias($newProperty);
+
         return $newProperty;
     }
+
+    private function skipAlias(core_kernel_classes_Property $newProperty)
+    {
+        $newProperty->removePropertyValues($newProperty->getProperty(GenerisRdf::PROPERTY_ALIAS));
+    }
 }
diff --git a/test/unit/models/classes/resources/Service/ClassMetadataCopierTest.php b/test/unit/models/classes/resources/Service/ClassMetadataCopierTest.php
index 0ab912ba74..5c4d85a46c 100644
--- a/test/unit/models/classes/resources/Service/ClassMetadataCopierTest.php
+++ b/test/unit/models/classes/resources/Service/ClassMetadataCopierTest.php
@@ -25,6 +25,7 @@
 namespace oat\tao\test\unit\model\resources\Service;
 
 use core_kernel_classes_Class;
+use oat\generis\model\GenerisRdf;
 use PHPUnit\Framework\TestCase;
 use core_kernel_classes_Property;
 use core_kernel_classes_Resource;
@@ -43,11 +44,14 @@ class ClassMetadataCopierTest extends TestCase
 
     /** @var core_kernel_classes_Property|MockObject */
     private $domainProperty;
+    /** @var core_kernel_classes_Property|MockObject */
+    private $aliasProperty;
 
     protected function setUp(): void
     {
         $this->classMetadataMapper = $this->createMock(ClassMetadataMapperInterface::class);
         $this->domainProperty = $this->createMock(core_kernel_classes_Property::class);
+        $this->aliasProperty = $this->createMock(core_kernel_classes_Property::class);
 
         $this->sut = new ClassMetadataCopier($this->classMetadataMapper);
     }
@@ -115,14 +119,20 @@ private function copyProperty(
             ->willReturn($newProperty);
 
         $newProperty
-            ->expects($this->once())
+            ->expects(self::exactly(2))
             ->method('getProperty')
-            ->with(OntologyRdfs::RDFS_DOMAIN)
-            ->willReturn($this->domainProperty);
+            ->withConsecutive(
+                [OntologyRdfs::RDFS_DOMAIN],
+                [GenerisRdf::PROPERTY_ALIAS]
+            )
+            ->willReturnOnConsecutiveCalls($this->domainProperty, $this->aliasProperty);
         $newProperty
-            ->expects($this->once())
+            ->expects(self::exactly(2))
             ->method('removePropertyValues')
-            ->with($this->domainProperty);
+            ->withConsecutive(
+                [$this->domainProperty],
+                [$this->aliasProperty]
+            );
         $newProperty
             ->expects($this->once())
             ->method('setDomain')