diff --git a/.gitattributes b/.gitattributes
index 82039c3..9155290 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -9,5 +9,6 @@ capi/** linguist-vendored
 media/** linguist-vendored
 pywrapper/** linguist-vendored
 py/** linguist-vendored
+C/** linguist-vendored
 scripts/** linguist-vendored