diff --git a/reactos/include/ndk/lpctypes.h b/reactos/include/ndk/lpctypes.h
index 2f869a8d9e9..b550ab1a32a 100644
--- a/reactos/include/ndk/lpctypes.h
+++ b/reactos/include/ndk/lpctypes.h
@@ -25,6 +25,15 @@ Author:
 #include <umtypes.h>
 //#include <pstypes.h>
 
+#ifndef NTOS_MODE_USER
+
+//
+// Kernel Exported Object Types
+//
+extern POBJECT_TYPE NTSYSAPI LpcPortObjectType;
+
+#endif // !NTOS_MODE_USER
+
 //
 // Internal helper macro
 //
diff --git a/reactos/include/ndk/pstypes.h b/reactos/include/ndk/pstypes.h
index 8e61f3b071b..65b88141cec 100644
--- a/reactos/include/ndk/pstypes.h
+++ b/reactos/include/ndk/pstypes.h
@@ -32,6 +32,15 @@ Author:
 #include <setypes.h>
 #endif
 
+#ifndef NTOS_MODE_USER
+
+//
+// Kernel Exported Object Types
+//
+extern POBJECT_TYPE NTSYSAPI PsJobType;
+
+#endif // !NTOS_MODE_USER
+
 //
 // KUSER_SHARED_DATA location in User Mode
 //