diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index a1a368dd2d992adb57f4b99942ffdb1e6e55a87b..140d02a5232af273b617a464fa08052438266262 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -21,7 +21,7 @@ static int pseries_remove_lmb(unsigned long base, unsigned int lmb_size)
 	struct zone *zone;
 	int ret;
 
-	start_pfn = base >> PFN_SECTION_SHIFT;
+	start_pfn = base >> PAGE_SHIFT;
 	zone = page_zone(pfn_to_page(start_pfn));
 
 	/*