diff --git a/src/southbridge/intel/i82870/Makefile.inc b/src/southbridge/intel/i82870/Makefile.inc
index d6ae171..83ebca5 100644
--- a/src/southbridge/intel/i82870/Makefile.inc
+++ b/src/southbridge/intel/i82870/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ifeq ($(CONFIG_SOUTHBRIDGE_INTEL_I82870),y)
 
 ramstage-y += ioapic.c