diff --git a/.gitattributes b/.gitattributes
index f0658ef4f5..5e8fb7937a 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -4,6 +4,7 @@
 *.perl eol=lf diff=perl
 *.pl eof=lf diff=perl
 *.pm eol=lf diff=perl
+*.png binary
 *.py eol=lf diff=python
 *.bat eol=crlf
 /Documentation/**/*.txt eol=lf