4 files changed, 8 insertions, 0 deletions
diff --git a/applets/battery/battery-acpi.c b/applets/battery/battery-acpi.c
index 8431127..d1d3de9 100644
--- a/applets/battery/battery-acpi.c
+++ b/applets/battery/battery-acpi.c
@@ -1,6 +1,8 @@
 /*
  * (C) 2008 Intel.
  *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * Licensed under the GPL v2 or greater.
  */
 
diff --git a/applets/battery/battery-apm.c b/applets/battery/battery-apm.c
index 2f39cb6..edaba43 100644
--- a/applets/battery/battery-apm.c
+++ b/applets/battery/battery-apm.c
@@ -1,6 +1,8 @@
 /*
  * (C) 2008 Intel.
  *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * Licensed under the GPL v2 or greater.
  */
 
diff --git a/applets/battery/battery.c b/applets/battery/battery.c
index c755856..b11517d 100644
--- a/applets/battery/battery.c
+++ b/applets/battery/battery.c
@@ -1,6 +1,8 @@
 /*
  * (C) 2006 OpenedHand Ltd.
  *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * Author: Jorn Baayen <jorn@openedhand.com>
  *
  * Licensed under the GPL v2 or greater.
diff --git a/applets/battery/battery.h b/applets/battery/battery.h
index cf23431..534988f 100644
--- a/applets/battery/battery.h
+++ b/applets/battery/battery.h
@@ -1,6 +1,8 @@
 /*
  * (C) 2008 Intel.
  *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * Licensed under the GPL v2 or greater.
  */