diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index ae007462..b7e314b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2403,7 +2403,7 @@
 		seq_printf(m, " pages=%d", v->nr_pages);
 
 	if (v->phys_addr)
-		seq_printf(m, " phys=%lx", v->phys_addr);
+		seq_printf(m, " phys=%llx", (unsigned long long)v->phys_addr);
 
 	if (v->flags & VM_IOREMAP)
 		seq_printf(m, " ioremap");