diff --git a/.gitattributes b/.gitattributes
index aa9a622..9f049d5 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -5,5 +5,7 @@
 /docker export-ignore
 /docker-compose.yml export-ignore
 
-test/* linguist-language=PHP
+# Exclude test files from GitHub's language statistics (** needed to match
+# nested files like test/test-pages/*/source.html, * stops at directories)
+/test/** linguist-vendored
 * text=auto eol=lf
\ No newline at end of file