diff --git a/extensions/swiftmailer/yii/swiftmailer/Message.php b/extensions/swiftmailer/yii/swiftmailer/Message.php
index 7cf3032..8ae3ee4 100644
--- a/extensions/swiftmailer/yii/swiftmailer/Message.php
+++ b/extensions/swiftmailer/yii/swiftmailer/Message.php
@@ -115,7 +115,7 @@ class Message extends BaseMessage
 	/**
 	 * @inheritdoc
 	 */
-	public function createAttachment($content, $fileName, $contentType = 'application/octet-stream')
+	public function attachContentAsFile($content, $fileName, $contentType = 'application/octet-stream')
 	{
 		if (empty($contentType)) {
 			$contentType = 'application/octet-stream';
diff --git a/framework/yii/mail/BaseMessage.php b/framework/yii/mail/BaseMessage.php
index 17658f4..5593cec 100644
--- a/framework/yii/mail/BaseMessage.php
+++ b/framework/yii/mail/BaseMessage.php
@@ -75,7 +75,7 @@ abstract class BaseMessage extends Object implements MessageInterface
 			$attachFileName = basename($fileName);
 		}
 		$content = file_get_contents($fileName);
-		$this->createAttachment($content, $attachFileName, $contentType);
+		$this->attachContentAsFile($content, $attachFileName, $contentType);
 	}
 
 	/**
diff --git a/framework/yii/mail/MessageInterface.php b/framework/yii/mail/MessageInterface.php
index c592edb..28223a4 100644
--- a/framework/yii/mail/MessageInterface.php
+++ b/framework/yii/mail/MessageInterface.php
@@ -82,12 +82,12 @@ interface MessageInterface
 	public function addHtml($html);
 
 	/**
-	 * Create file attachment for the email message.
+	 * Attach specified content as file for the email message.
 	 * @param string $content attachment file content.
 	 * @param string $fileName attachment file name.
 	 * @param string $contentType MIME type of the attachment file, by default 'application/octet-stream' will be used.
 	 */
-	public function createAttachment($content, $fileName, $contentType = 'application/octet-stream');
+	public function attachContentAsFile($content, $fileName, $contentType = 'application/octet-stream');
 
 	/**
 	 * Attaches existing file to the email message.
diff --git a/tests/unit/extensions/swiftmailer/MessageTest.php b/tests/unit/extensions/swiftmailer/MessageTest.php
index 530d725..dabe831 100644
--- a/tests/unit/extensions/swiftmailer/MessageTest.php
+++ b/tests/unit/extensions/swiftmailer/MessageTest.php
@@ -82,7 +82,7 @@ class MessageTest extends VendorTestCase
 		$message->setFrom('someuser@somedomain.com');
 		$message->setSubject('Yii Swift Create Attachment Test');
 		$message->setText('Yii Swift Create Attachment Test body');
-		$message->createAttachment('Test attachment content', 'test.txt');
+		$message->attachContentAsFile('Test attachment content', 'test.txt');
 		$this->assertTrue($message->send());
 	}
 
diff --git a/tests/unit/framework/mail/BaseMailerTest.php b/tests/unit/framework/mail/BaseMailerTest.php
index 88d6a4e..95bd836 100644
--- a/tests/unit/framework/mail/BaseMailerTest.php
+++ b/tests/unit/framework/mail/BaseMailerTest.php
@@ -187,5 +187,5 @@ class Message extends BaseMessage
 
 	public function addHtml($html) {}
 
-	public function createAttachment($content, $fileName, $contentType = 'application/octet-stream') {}
+	public function attachContentAsFile($content, $fileName, $contentType = 'application/octet-stream') {}
 }
\ No newline at end of file