diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..d885992a
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+# Mark generated files as such.
+/addon/flamenco/manager/** linguist-generated=true
+/web/app/src/manager-api/** linguist-generated=true
+**/*.gen.go linguist-generated=true