diff --git a/.gitattributes b/.gitattributes
index cd2c2b7..4ddaa1c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,13 @@
 autotests/read/raw/RAW_KODAK_C330_FORMAT_NONE_YRGB.raw binary
+autotests/read/hdr/orientation1.hdr binary
+autotests/read/hdr/orientation2.hdr binary
+autotests/read/hdr/orientation3.hdr binary
+autotests/read/hdr/orientation4.hdr binary
+autotests/read/hdr/orientation5.hdr binary
+autotests/read/hdr/orientation6.hdr binary
+autotests/read/hdr/orientation7.hdr binary
+autotests/read/hdr/orientation8.hdr binary
+autotests/read/hdr/fake_earth.hdr binary
+autotests/read/hdr/rgb.hdr binary
+autotests/read/hdr/rgb-landscape.hdr binary
+autotests/read/hdr/rgb-portrait.hdr binary