1 files changed, 4 insertions, 0 deletions
diff --git a/src/sha.h b/src/sha.h
index 13583e3..810072b 100644
--- a/src/sha.h
+++ b/src/sha.h
@@ -1,3 +1,7 @@
+/*
+* SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
 /* sha.h - Declaration of functions and datatypes for SHA1 sum computing
    library functions.