diff --git a/src/Database/Validator/Structure.php b/src/Database/Validator/Structure.php
index 3d7d2ade7..db57ce8d8 100644
--- a/src/Database/Validator/Structure.php
+++ b/src/Database/Validator/Structure.php
@@ -254,6 +254,10 @@ public function isValid($document): bool
                 continue;
             }
 
+            if($type === Database::VAR_RELATIONSHIP) {
+                continue;
+            }
+
             switch ($type) {
                 case Database::VAR_STRING:
                     $size = $attribute['size'] ?? 0;
@@ -276,8 +280,6 @@ public function isValid($document): bool
                     $validator = new DatetimeValidator();
                     break;
 
-                case Database::VAR_RELATIONSHIP:
-                    return true;
                 default:
                     $this->message = 'Unknown attribute type "'.$type.'"';
                     return false;
diff --git a/tests/e2e/Adapter/Base.php b/tests/e2e/Adapter/Base.php
index 7d47a0f40..9fbd9e54b 100644
--- a/tests/e2e/Adapter/Base.php
+++ b/tests/e2e/Adapter/Base.php
@@ -3898,6 +3898,36 @@ public function testNoChangeUpdateDocumentWithoutPermission(Document $document):
         return $document;
     }
 
+    public function testStructureValidationAfterRelationsAttribute(): void
+    {
+        if (!static::getDatabase()->getAdapter()->getSupportForRelationships()) {
+            $this->expectNotToPerformAssertions();
+            return;
+        }
+
+        static::getDatabase()->createCollection("structure_1", [], [], [Permission::create(Role::any())]);
+        static::getDatabase()->createCollection("structure_2", [], [], [Permission::create(Role::any())]);
+
+        static::getDatabase()->createRelationship(
+            collection: "structure_1",
+            relatedCollection: "structure_2",
+            type: Database::RELATION_ONE_TO_ONE,
+        );
+
+        try {
+            static::getDatabase()->createDocument('structure_1', new Document([
+                '$permissions' => [
+                    Permission::read(Role::any()),
+                ],
+                'structure_2' => '100',
+                'name' => 'Frozen', // Unknown attribute 'name' after relation attribute
+            ]));
+            $this->fail('Failed to throw exception');
+        } catch(Exception $e) {
+            $this->assertInstanceOf(StructureException::class, $e);
+        }
+    }
+
     public function testNoChangeUpdateDocumentWithRelationWithoutPermission(): void
     {
         if (!static::getDatabase()->getAdapter()->getSupportForRelationships()) {