diff --git a/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html b/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html
index f23d124e7..15fbae6ba 100644
--- a/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html
+++ b/snappymail/v/0.0.0/app/templates/Views/User/PopupsCompose.html
@@ -130,7 +130,7 @@
 			<tr>
 				<td data-i18n="GLOBAL/SUBJECT"></div>
 				<td>
-					<input type="text" name="subject" autocomplete="off" data-bind="textInput: subject">
+					<input type="text" name="subject" autocomplete="off" data-bind="textInput: subject, attr:{spellcheck:allowSpellcheck()?'true':'false'}">
 				</td>
 			</tr>
 		</table>