diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index a38022fa286f..6bd17a8f3dd4 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -498,7 +498,7 @@ static int sh_tmu_channel_setup(struct sh_tmu_channel *ch, unsigned int index,
 			ch->base = tmu->mapbase + 8 + ch->index * 12;
 	}
 
-	ch->irq = platform_get_irq(tmu->pdev, ch->index);
+	ch->irq = platform_get_irq(tmu->pdev, index);
 	if (ch->irq < 0) {
 		dev_err(&tmu->pdev->dev, "ch%u: failed to get irq\n",
 			ch->index);