1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index cd8722e4157e..ce69f7592a22 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -1854,7 +1854,7 @@ static int __init register_driver(struct ibm_struct *ibm)
         }
 
         memset(ibm->driver, 0, sizeof(struct acpi_driver));
-        sprintf(ibm->driver->name, "%s/%s", IBM_NAME, ibm->name);
+        sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name);
         ibm->driver->ids = ibm->hid;
         ibm->driver->ops.add = &ibm_device_add;