diff --git a/.gitattributes b/.gitattributes
index d7a9139e8ac..07a337b2f3c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,3 @@
 ## Merger hooks, run tools/hooks/install.bat or install.sh to set up
 *.dmm text eol=lf merge=dmm
+*.dmi binary merge=dmi