diff --git a/reactos/include/ndk/cmtypes.h b/reactos/include/ndk/cmtypes.h
index 4fdf9a5892f..00554c9e033 100644
--- a/reactos/include/ndk/cmtypes.h
+++ b/reactos/include/ndk/cmtypes.h
@@ -471,6 +471,13 @@ typedef struct _PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA
     PWCHAR Buffer;
 } PLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA, *PPLUGPLAY_CONTROL_DEVICE_RELATIONS_DATA;
 
+// Class 0x13
+typedef struct _PLUGPLAY_CONTROL_RETRIEVE_DOCK_DATA
+{
+    ULONG DeviceInstanceLength;
+    PWSTR DeviceInstance;
+} PLUGPLAY_CONTROL_RETRIEVE_DOCK_DATA, *PPLUGPLAY_CONTROL_RETRIEVE_DOCK_DATA;
+
 // Class 0x14
 typedef struct _PLUGPLAY_CONTROL_RESET_DEVICE_DATA
 {