diff --git a/sys/arm/include/atomic-v4.h b/sys/arm/include/atomic-v4.h
index 0c0b377f1549..b4ff5bf15a5e 100644
--- a/sys/arm/include/atomic-v4.h
+++ b/sys/arm/include/atomic-v4.h
@@ -372,6 +372,8 @@ atomic_swap_32(volatile u_int32_t *p, u_int32_t v)
 
 #define atomic_cmpset_rel_32	atomic_cmpset_32
 #define atomic_cmpset_acq_32	atomic_cmpset_32
+#define atomic_cmpset_rel_64	atomic_cmpset_64
+#define atomic_cmpset_acq_64	atomic_cmpset_64
 #define atomic_set_rel_32	atomic_set_32
 #define atomic_set_acq_32	atomic_set_32
 #define atomic_clear_rel_32	atomic_clear_32