diff --git a/.gitattributes b/.gitattributes
index 663e9664c..ed17c0b5f 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -2,4 +2,5 @@ test/diffs linguist-vendored
 test/diffs-todo linguist-vendored
 test/crashers linguist-vendored
 test/crashers-todo linguist-vendored
+test/repos linguist-vendored
 vendor linguist-vendored