diff --git a/.gitattributes b/.gitattributes
index e69de29..6f5cabe 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+hcl/ac/* linguist-generated=true
+hcl/m4/* linguist-generated=true
+h2/ac/* linguist-generated=true
+h2/m4/* linguist-generated=true
+h2/libltdl/* linguist-generated=true