diff --git a/data/pc/common/features.json b/data/pc/common/features.json
index 72c19dc0e..5bdbdac1d 100644
--- a/data/pc/common/features.json
+++ b/data/pc/common/features.json
@@ -180,6 +180,14 @@
       "latest"
     ]
   },
+  {
+    "name": "clientTickEndPacket",
+    "description": "Client must send an empty serverbound tick_end packet once per client tick. The server uses it to reset its per-tick received-movement-packet bookkeeping (receivedPositionThisTick/receivedMovementThisTick); without it, the second position-bearing move packet ever sent (no matter how much later) gets the client kicked with multiplayer.disconnect.invalid_player_movement. Found live-testing against a 26.3 server by decompiling ServerGamePacketListenerImpl.handleClientTickEnd.",
+    "versions": [
+      "1.21.3",
+      "latest"
+    ]
+  },
   {
     "name": "clientUpdateBookIdWhenSign",
     "description": "when sending MC|BSign, item type should be written_book",