diff --git a/.gitattributes b/.gitattributes
index d94c900775..c3c06fe84c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,8 +3,11 @@
 
 # Ensure the following are treated as binary.
 *.cer      binary
+*.graffle  binary
 *.jar      binary
 *.jpeg     binary
 *.jpg      binary
 *.keystore binary
+*.odg      binary
+*.otg      binary
 *.png      binary