diff --git a/lib/base/heimbase-atomics.h b/lib/base/heimbase-atomics.h
index 990d9b32a..e468a36bd 100644
--- a/lib/base/heimbase-atomics.h
+++ b/lib/base/heimbase-atomics.h
@@ -357,7 +357,7 @@ heim_base_cas_64(heim_base_atomic(uint64_t) *target, uint64_t expected,uint64_t
 #endif
 
 #ifndef heim_base_atomic_barrier
-#define heim_base_atomic_barrier()
+static inline void heim_base_atomic_barrier(void) { return; }
 #endif
 
 #ifndef heim_base_atomic_load