diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index 7837c791f7e8..aad7fc57e306 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -46,7 +46,7 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
 		break;
 	case FUTEX_OP_ANDN:
 		__futex_atomic_op("lr %2,%1\nnr %2,%5\n",
-				  ret, oldval, newval, uaddr, oparg);
+				  ret, oldval, newval, uaddr, ~oparg);
 		break;
 	case FUTEX_OP_XOR:
 		__futex_atomic_op("lr %2,%1\nxr %2,%5\n",