diff --git a/dll/win32/setupapi/cfgmgr.c b/dll/win32/setupapi/cfgmgr.c
index 923f16c2b2c..b6827bc6925 100644
--- a/dll/win32/setupapi/cfgmgr.c
+++ b/dll/win32/setupapi/cfgmgr.c
@@ -675,7 +675,7 @@ CMP_RegisterNotification(
                                        ((DEV_BROADCAST_HDR*)lpvNotificationFilter)->dbch_size,
                                        ulFlags,
                                        &pNotifyData->ulNotifyData,
-                                       0,            /* ??? */
+                                       GetCurrentProcessId(),
                                        &ulUnknown9); /* ??? */
     }
     RpcExcept(EXCEPTION_EXECUTE_HANDLER)
diff --git a/sdk/include/reactos/idl/pnp.idl b/sdk/include/reactos/idl/pnp.idl
index d1aa03e678d..b3bcc221a49 100644
--- a/sdk/include/reactos/idl/pnp.idl
+++ b/sdk/include/reactos/idl/pnp.idl
@@ -881,8 +881,8 @@ interface pnp
         [in] DWORD ulNotificationFilterSize,
         [in] DWORD ulFlags,
         [out] DWORD *pulNotifyData,
-        [in] DWORD ulUnknown8,
-        [out] DWORD *pulUnknown9);
+        [in] DWORD ulProcessId,
+        [in] DWORD *pulUnknown9);
 
     /* Function 60 */
     DWORD