diff --git a/arch/wasm32/atomic_arch.h b/arch/wasm32/atomic_arch.h
index 78b183cb..0f3c5478 100644
--- a/arch/wasm32/atomic_arch.h
+++ b/arch/wasm32/atomic_arch.h
@@ -4,7 +4,7 @@
 
 #include <stdlib.h>
 
-#define a_barrier() syscall(__NR_membarrier)
+#define a_barrier() (0)
 
 #define a_cas a_cas
 static inline int a_cas(volatile int *p, int t, int s)