diff --git a/src/mainboard/emulation/qemu-i440fx/mainboard.c b/src/mainboard/emulation/qemu-i440fx/mainboard.c
index a7c6b32..13f0766 100644
--- a/src/mainboard/emulation/qemu-i440fx/mainboard.c
+++ b/src/mainboard/emulation/qemu-i440fx/mainboard.c
@@ -37,7 +37,7 @@
 
 	if (CONFIG(ARCH_RAMSTAGE_X86_64)) {
 		/* Reserve page tables in DRAM. FIXME: Remove once x86_64 page tables reside in CBMEM */
-		reserved_ram_resource(dev, 0, CONFIG_ARCH_X86_64_PGTBL_LOC / KiB,
+		reserved_ram_resource_kb(dev, 0, CONFIG_ARCH_X86_64_PGTBL_LOC / KiB,
 			(6 * 0x1000) / KiB);
 	}
 }