diff --git a/arch/mipsn32/syscall_arch.h b/arch/mipsn32/syscall_arch.h
index 2ebf03066242a87709f91010a69e13c7f39ca5c9..7b11740f07b78b7e715ca741d82d726488213a3a 100644
--- a/arch/mipsn32/syscall_arch.h
+++ b/arch/mipsn32/syscall_arch.h
@@ -124,7 +124,7 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 	register long r6 __asm__("$6") = c;
 	register long r7 __asm__("$7") = d;
 	register long r8 __asm__("$8") = e;
-	register long r8 __asm__("$9") = f;
+	register long r9 __asm__("$9") = f;
 	register long r2 __asm__("$2");
 	__asm__ __volatile__ (
 		"addu $2,$0,%2 ; syscall"