diff --git a/drivers/hwmon/peci/cputemp.c b/drivers/hwmon/peci/cputemp.c
index 57470fda5f6c..30850a479f61 100644
--- a/drivers/hwmon/peci/cputemp.c
+++ b/drivers/hwmon/peci/cputemp.c
@@ -402,7 +402,7 @@ static int create_temp_label(struct peci_cputemp *priv)
 	unsigned long core_max = find_last_bit(priv->core_mask, CORE_NUMS_MAX);
 	int i;
 
-	priv->coretemp_label = devm_kzalloc(priv->dev, core_max * sizeof(char *), GFP_KERNEL);
+	priv->coretemp_label = devm_kzalloc(priv->dev, (core_max + 1) * sizeof(char *), GFP_KERNEL);
 	if (!priv->coretemp_label)
 		return -ENOMEM;