diff --git a/.gitattributes b/.gitattributes
index 443d3cc5..74f0a3d8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -5,3 +5,6 @@
 # force all text files on the working dir to have LF line endings
 # https://git-scm.com/docs/gitattributes#_eol
 * text eol=lf
+
+# PNGs are not text and should not be normalized
+*.png -text