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-rw-r--r--database/engine/metric.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/database/engine/metric.h b/database/engine/metric.h
index 5cb5b045e2..40abb6d57d 100644
--- a/database/engine/metric.h
+++ b/database/engine/metric.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#ifndef DBENGINE_METRIC_H
#define DBENGINE_METRIC_H