diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 01015d85ab6493fce4d9cdd540a7adfb04d3daa2..9e59543d314c4b0b5247db069bbbfd900f389c8d 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1892,7 +1892,7 @@ static int pm_genpd_summary_one(struct seq_file *s,
 	if (WARN_ON(genpd->status >= ARRAY_SIZE(status_lookup)))
 		goto exit;
 	if (genpd->status == GPD_STATE_POWER_OFF)
-		snprintf(state, sizeof(state), "%s %u",
+		snprintf(state, sizeof(state), "%s-%u",
 			 status_lookup[genpd->status], genpd->state_idx);
 	else
 		snprintf(state, sizeof(state), "%s",