diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 8fe7237bc46f..fa4550611c11 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -931,6 +931,7 @@ void build_flat_dt(struct iseries_flat_dt *dt, unsigned long phys_mem_size)
 	/* /chosen */
 	dt_start_node(dt, "chosen");
 	dt_prop_u32(dt, "linux,platform", PLATFORM_ISERIES_LPAR);
+	dt_prop_str(dt, "bootargs", cmd_line);
 	if (cmd_mem_limit)
 		dt_prop_u64(dt, "linux,memory-limit", cmd_mem_limit);
 	dt_end_node(dt);