diff --git a/src/lj_arch.h b/src/lj_arch.h
index d17884e5..3ce9a7ff 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -362,7 +362,7 @@
 #define LJ_ARCH_BITS		64
 #define LJ_ARCH_ENDIAN		LUAJIT_BE
 #define LJ_TARGET_S390X		1
-#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_EHRETREG	0xe
 #define LJ_TARGET_JUMPRANGE	32	/* +-2^32 = +-4GB (32-bit, halfword aligned) */
 #define LJ_TARGET_MASKSHIFT	1
 #define LJ_TARGET_MASKROT	1