diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c
index 2d80d775d15ea..bf251191e78d9 100644
--- a/arch/powerpc/mm/ptdump/ptdump.c
+++ b/arch/powerpc/mm/ptdump/ptdump.c
@@ -359,6 +359,8 @@ static int __init ptdump_init(void)
 		ptdump_range[0].start = KERN_VIRT_START;
 	else
 		ptdump_range[0].start = PAGE_OFFSET;
+
+	ptdump_range[0].end = PAGE_OFFSET + (PGDIR_SIZE * PTRS_PER_PGD);
 #endif
 
 	populate_markers();