diff --git a/.gitattributes b/.gitattributes
index 5e81689..b6c1a28 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,3 +3,4 @@
 *.UP -text
 ci_*.sh text eol=lf
 .github/workflows/*.yml text eol=lf
+test/** binary diff