diff --git a/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java b/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java
index 8d52cf5..9ff4d79 100644
--- a/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java
+++ b/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java
@@ -80,6 +80,7 @@ public enum State {
                     .put(0x0D, PlayerPositionPacket.class)
                     .put(0x0E, PlayerPositionAndLookPacket.class)
                     .put(0x0F, PlayerLookPacket.class)
+                    .put(0x15, EntityActionPacket.class)
                     .put(0x1A, HeldItemChangePacket.class)
                     .put(0x1D, AnimationPacket.class)
                     .build(),
diff --git a/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/EntityActionPacket.java b/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/EntityActionPacket.java
new file mode 100644
index 0000000..0e02a01
--- /dev/null
+++ b/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/EntityActionPacket.java
@@ -0,0 +1,45 @@
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import mc.core.network.CSPacket;
+import mc.core.network.NetInputStream;
+
+import java.util.Arrays;
+
+@Getter
+public class EntityActionPacket implements CSPacket {
+    @RequiredArgsConstructor
+    public enum Action {
+        START_SNEAKING(0),
+        STOP_SNEAKING(1),
+        LEAVE_BED(2), // Leave bed is only sent when the “Leave Bed” button is clicked on the sleep GUI, not when waking up due today time.
+        START_SPRINTING(3),
+        STOP_SPRINTING(4),
+        START_JUMP_WITH_HORSE(5),
+        STOP_JUMP_WITH_HORSE(6),
+        OPEN_HORSE_INVENTORY(7), // Open horse inventory is only sent when pressing the inventory key (default: E) while on a horse — all other methods of opening a horse's inventory (involving right-clicking or shift-right-clicking it) do not use this packet.
+        START_FLYING_WITH_ELYTRA(8);
+
+        public static Action getById(final int id) {
+            return Arrays.stream(Action.values())
+                    .filter(action -> action.id == id)
+                    .findFirst()
+                    .orElse(null);
+        }
+
+        @Getter
+        private final int id;
+    }
+
+    private int entityId;
+    private Action action;
+    private int jumpBoost; // Only used by the “start jump with horse” action, in which case it ranges from 0 to 100. In all other cases it is 0.
+
+    @Override
+    public void readSelf(NetInputStream netStream) {
+        entityId = netStream.readVarInt();
+        action = Action.getById(netStream.readVarInt());
+        jumpBoost = netStream.readVarInt();
+    }
+}