diff --git a/OpenInTusker/Info.plist b/OpenInTusker/Info.plist
index a397805d..5068b861 100644
--- a/OpenInTusker/Info.plist
+++ b/OpenInTusker/Info.plist
@@ -24,6 +24,8 @@
 	<dict>
 		<key>NSExtensionAttributes</key>
 		<dict>
+			<key>NSExtensionServiceRoleType</key>
+			<string>NSExtensionServiceRoleTypeViewer</string>
 			<key>NSExtensionActivationRule</key>
 			<dict>
 				<key>NSExtensionActivationSupportsAttachmentsWithMinCount</key>