diff --git a/arch/microblaze/syscall_arch.h b/arch/microblaze/syscall_arch.h
index 942aaa2da77286ca73c45740743c11e34eddf4d7..169013f80e4eea1e0f1adfde0516562d673fae80 100644
--- a/arch/microblaze/syscall_arch.h
+++ b/arch/microblaze/syscall_arch.h
@@ -1,7 +1,7 @@
 #define __SYSCALL_LL_E(x) \
 ((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
 ((union { long long ll; long l[2]; }){ .ll = x }).l[1]
-#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
 
 static __inline long __syscall0(long n)
 {