diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 39f3dfe134fb9cb619c3c49d48de00be105a9490..c6a063b2a0d9fcc9a7296a580f8c4ee65b0b89f3 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -331,6 +331,7 @@ static void __init bootmem_init(void)
 	/*
 	 * Determine low and high memory ranges
 	 */
+	max_pfn = max_low_pfn;
 	if (max_low_pfn > PFN_DOWN(HIGHMEM_START)) {
 #ifdef CONFIG_HIGHMEM
 		highstart_pfn = PFN_DOWN(HIGHMEM_START);