diff --git a/src/lj_arch.h b/src/lj_arch.h
index 5962f3af..fcebd84b 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -201,7 +201,7 @@
 #define LJ_TARGET_UNIFYROT	2	/* Want only IR_BROR. */
 #define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
 
-#if __ARM_ARCH____ARM_ARCH_8__ || __ARM_ARCH_8A__
+#if __ARM_ARCH_8__ || __ARM_ARCH_8A__
 #define LJ_ARCH_VERSION		80
 #elif __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__ || __ARM_ARCH_7VE__
 #define LJ_ARCH_VERSION		70