diff --git a/reactos/include/ndk/pstypes.h b/reactos/include/ndk/pstypes.h
index ef0fc65ad70..0db76b1ab71 100644
--- a/reactos/include/ndk/pstypes.h
+++ b/reactos/include/ndk/pstypes.h
@@ -171,6 +171,25 @@ Author:
                                                  SYNCHRONIZE | \
                                                  31)
 
+//
+// Job Limit Flags
+//
+#define JOB_OBJECT_LIMIT_WORKINGSET             0x1
+#define JOB_OBJECT_LIMIT_PROCESS_TIME           0x2
+#define JOB_OBJECT_LIMIT_JOB_TIME               0x4
+#define JOB_OBJECT_LIMIT_ACTIVE_PROCESS         0x8
+#define JOB_OBJECT_LIMIT_AFFINITY               0x10
+#define JOB_OBJECT_LIMIT_PRIORITY_CLASS         0x20
+#define JOB_OBJECT_LIMIT_PRESERVE_JOB_TIME      0x40
+#define JOB_OBJECT_LIMIT_SCHEDULING_CLASS       0x80
+#define JOB_OBJECT_LIMIT_PROCESS_MEMORY         0x100
+#define JOB_OBJECT_LIMIT_JOB_MEMORY             0x200
+#define JOB_OBJECT_LIMIT_DIE_ON_UNHANDLED_EXCEPTION 0x400
+#define JOB_OBJECT_LIMIT_BREAKAWAY_OK           0x800
+#define JOB_OBJECT_LIMIT_SILENT_BREAKAWAY_OK    0x1000
+#define JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE      0x2000
+
+
 //
 // Cross Thread Flags
 //