diff --git a/.gitattributes b/.gitattributes
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+++ b/.gitattributes
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+# Copyright Contributors to the OpenImageIO project.
+# SPDX-License-Identifier: Apache-2.0
+# https://github.com/AcademySoftwareFoundation/OpenImageIO
+
+# Helpful documentation:
+# - https://github.com/github-linguist/linguist/blob/main/docs/overrides.md
+# - https://github.com/github-linguist/linguist/blob/main/docs/troubleshooting.md
+
+
+*.h linguist-language=C++
+src/libOpenImageIO/bluenoise.inc -linguist-detectable