diff --git a/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala b/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
index 69629b548..35a4cd105 100644
--- a/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
+++ b/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
@@ -385,7 +385,7 @@ object GamePacketOpcode extends Enumeration {
     case 0x36 => game.PickupItemMessage.decode
     case 0x37 => game.DropItemMessage.decode
     // 0x38
-    case 0x38 => noDecoder(InventoryStateMessage)
+    case 0x38 => game.InventoryStateMessage.decode
     case 0x39 => game.ChangeFireStateMessage_Start.decode
     case 0x3a => game.ChangeFireStateMessage_Stop.decode
     case 0x3b => noDecoder(UnknownMessage59)
diff --git a/common/src/main/scala/net/psforever/packet/game/InventoryStateMessage.scala b/common/src/main/scala/net/psforever/packet/game/InventoryStateMessage.scala
new file mode 100644
index 000000000..60817688c
--- /dev/null
+++ b/common/src/main/scala/net/psforever/packet/game/InventoryStateMessage.scala
@@ -0,0 +1,25 @@
+// Copyright (c) 2017 PSForever
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PlanetSideGamePacket}
+import scodec.Codec
+import scodec.codecs._
+
+final case class InventoryStateMessage(player_guid : PlanetSideGUID,
+                                       unk1 : Int,
+                                       unk2 : Int,
+                                       unk3 : Long)
+  extends PlanetSideGamePacket {
+  type Packet = InventoryStateMessage
+  def opcode = GamePacketOpcode.InventoryStateMessage
+  def encode = InventoryStateMessage.encode(this)
+}
+
+object InventoryStateMessage extends Marshallable[InventoryStateMessage] {
+  implicit val codec : Codec[InventoryStateMessage] = (
+    ("player_guid" | PlanetSideGUID.codec) ::
+      ("unk1" | uintL(10)) ::
+      ("unk2" | uint16L) ::
+      ("unk3" | uint32L)
+    ).as[InventoryStateMessage]
+}