diff --git a/Feature-Matrix.md b/Feature-Matrix.md
index 7eeb71a..ef63159 100644
--- a/Feature-Matrix.md
+++ b/Feature-Matrix.md
@@ -51,7 +51,7 @@
 | sendReaction                        | ✅ | ❌ | ✅
 | >  sendMessageReaction              | ✅ | ❌ | ✅
 | >  sendGroupMessageReaction         | ✅ | ❌ | ✅
-| sendSyncRequest                     | ✅ | ❌ | ❌
+| sendSyncRequest                     | ✅ | ❌ | ✅<sup>1, 23</sup>
 | sendTyping                          | ✅ | ❌ | ✅<sup>1</sup>
 | setPin                              | ✅ | ❌ | ✅<sup>1</sup>
 | trust                               | ✅ | ❌ | ❌
@@ -167,4 +167,5 @@
 19. Provided indirectly by `getGroupIds` and a series of calls to `getGroupMembers`, `getGroupName` and `isGroupBlocked`
 20. Send the name of a zero-length file to delete the group avatar
 21. Kills daemon upon successful unregister command
-22. NA = Not Applicable
\ No newline at end of file
+22. NA = Not Applicable
+23. Only works if a secondary device is running the daemon.
\ No newline at end of file