diff --git a/arch/mips/include/asm/bootinfo.h b/arch/mips/include/asm/bootinfo.h
index 5be10ece3ef0f50582d2353e55bba49ccbc6c254..4c2e8173e6ec208669b50a22b88aa79540b7243a 100644
--- a/arch/mips/include/asm/bootinfo.h
+++ b/arch/mips/include/asm/bootinfo.h
@@ -107,7 +107,7 @@ extern void (*free_init_pages_eva)(void *begin, void *end);
 extern char arcs_cmdline[COMMAND_LINE_SIZE];
 
 /*
- * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware
+ * Registers a0, a1, a2 and a3 as passed to the kernel entry by firmware
  */
 extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;