diff --git a/.gitattributes b/.gitattributes
index 6e546346..b0e3d15e 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,10 @@
 src/octoprint/_version.py export-subst
+
+src/octoprint/static/js/lib/* linguist-vendored
+src/octoprint/static/less/bootstrap/* linguist-vendored
+src/octoprint/static/less/font-awesome.less linguist-vendored
+src/octoprint/static/less/mixins.less linguist-vendored
+src/octoprint/static/less/variables.less linguist-vendored
+versioneer.py linguist-vendored
+
+docs/* linguist-documentation