diff --git a/linux/s390/arch_sigreturn.c b/linux/s390/arch_sigreturn.c
index 6baf035..00549ba 100644
--- a/linux/s390/arch_sigreturn.c
+++ b/linux/s390/arch_sigreturn.c
@@ -7,11 +7,6 @@
 	if (umove(tcp, addr, &mask) < 0) {
 		tprintf("{mask=%#lx}", addr);
 	} else {
-#ifdef S390
-		long v = mask[0];
-		mask[0] = mask[1];
-		mask[1] = v;
-#endif
 		tprintsigmask_addr("{mask=", mask);
 		tprints("}");
 	}