diff --git a/libatomic/config/arm/arm-config.h b/libatomic/config/arm/arm-config.h
index b94a372..b99c82e 100644
--- a/libatomic/config/arm/arm-config.h
+++ b/libatomic/config/arm/arm-config.h
@@ -57,6 +57,10 @@
 # define __ARM_ARCH__ 7
 #endif
 
+#if defined(__ARM_ARCH_8A__)
+# define __ARM_ARCH__ 8
+#endif
+
 #ifndef __ARM_ARCH__
 #error Unable to determine architecture.
 #endif
-- 
1.7.9.5