diff --git a/.gitattributes b/.gitattributes
index fcadb2cf9..f49b99cfa 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,7 @@
 * text eol=lf
+
+# Denote all files that are truly binary and should not be modified.
+*.png binary
+*.gif binary
+*.jpg binary
+*.jpeg binary
diff --git a/app/templates/.gitattributes b/app/templates/.gitattributes
index fcadb2cf9..f49b99cfa 100644
--- a/app/templates/.gitattributes
+++ b/app/templates/.gitattributes
@@ -1 +1,7 @@
 * text eol=lf
+
+# Denote all files that are truly binary and should not be modified.
+*.png binary
+*.gif binary
+*.jpg binary
+*.jpeg binary