diff --git a/drivers/ipack/ipack.c b/drivers/ipack/ipack.c
index c0e7b624ce54..12102448fddd 100644
--- a/drivers/ipack/ipack.c
+++ b/drivers/ipack/ipack.c
@@ -178,7 +178,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 		       idev->id_vendor, idev->id_device);
 }
 
-ipack_device_attr(id_format, "0x%hhu\n");
+ipack_device_attr(id_format, "0x%hhx\n");
 
 static DEVICE_ATTR_RO(id);
 static DEVICE_ATTR_RO(id_device);