diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index a7e8a53..f35b131 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -40,14 +40,14 @@
 
 #ifdef CONFIG_32BIT
 	case 4: case 5: case 6: case 7:
-		return get_user(*arg, (int *)usp + 4 * n);
+		return get_user(*arg, (int *)usp + n);
 #endif
 
 #ifdef CONFIG_64BIT
 	case 4: case 5: case 6: case 7:
 #ifdef CONFIG_MIPS32_O32
 		if (test_thread_flag(TIF_32BIT_REGS))
-			return get_user(*arg, (int *)usp + 4 * n);
+			return get_user(*arg, (int *)usp + n);
 		else
 #endif
 			*arg = regs->regs[4 + n];