diff --git a/sdk/include/psdk/winbase.h b/sdk/include/psdk/winbase.h
index 495c02c1dc7..88ba3a445ac 100644
--- a/sdk/include/psdk/winbase.h
+++ b/sdk/include/psdk/winbase.h
@@ -198,6 +198,7 @@ extern "C" {
 #define PROFILE_USER                      0x10000000
 #define PROFILE_KERNEL                    0x20000000
 #define PROFILE_SERVER                    0x40000000
+#define CREATE_IGNORE_SYSTEM_DEFAULT      0x80000000
 
 /* CreateThread()/CreateRemoteThread() dwCreationFlags values */
 // #define CREATE_SUSPENDED 0x00000004 // See above