diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h
index 4ba14e463e838ad6366673eceea62377ccb96c99..2bd9faeb3919a0a3b7fae325769c3042db144d44 100644
--- a/include/asm-s390/setup.h
+++ b/include/asm-s390/setup.h
@@ -65,7 +65,6 @@ extern unsigned long machine_flags;
 
 #define MACHINE_FLAG_VM		(1UL << 0)
 #define MACHINE_FLAG_IEEE	(1UL << 1)
-#define MACHINE_FLAG_P390	(1UL << 2)
 #define MACHINE_FLAG_CSP	(1UL << 3)
 #define MACHINE_FLAG_MVPG	(1UL << 4)
 #define MACHINE_FLAG_DIAG44	(1UL << 5)