diff --git a/src/Entity/Attachments/Attachment.php b/src/Entity/Attachments/Attachment.php
index dcc177a5..9c86ca87 100644
--- a/src/Entity/Attachments/Attachment.php
+++ b/src/Entity/Attachments/Attachment.php
@@ -455,7 +455,7 @@ abstract class Attachment extends AbstractNamedDBElement
      *
      * @return bool True if the string is a valid URL. False, if the string is not an URL or invalid.
      */
-    public static function isURL(string $string, bool $path_required = true, bool $only_http = true): bool
+    public static function isValidURL(string $string, bool $path_required = true, bool $only_http = true): bool
     {
         if ($only_http) {   //Check if scheme is HTTPS or HTTP
             $scheme = parse_url($string, PHP_URL_SCHEME);
diff --git a/tests/Entity/Attachments/AttachmentTest.php b/tests/Entity/Attachments/AttachmentTest.php
index 182d3049..7eab56f2 100644
--- a/tests/Entity/Attachments/AttachmentTest.php
+++ b/tests/Entity/Attachments/AttachmentTest.php
@@ -285,14 +285,14 @@ class AttachmentTest extends TestCase
     public function testIsURL(): void
     {
         $url = '%MEDIA%/test.txt';
-        $this->assertFalse(Attachment::isURL($url));
+        $this->assertFalse(Attachment::isValidURL($url));
 
         $url = 'https://google.de';
-        $this->assertFalse(Attachment::isURL($url));
+        $this->assertFalse(Attachment::isValidURL($url));
 
         $url = 'ftp://google.de';
-        $this->assertTrue(Attachment::isURL($url, false, false));
-        $this->assertFalse(Attachment::isURL($url, false, true));
+        $this->assertTrue(Attachment::isValidURL($url, false, false));
+        $this->assertFalse(Attachment::isValidURL($url, false, true));
     }
 
     /**