diff --git a/.gitattributes b/.gitattributes
index f7bd4d0..80c1921 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -126,6 +126,7 @@
 *.dds               filter=lfs diff=lfs merge=lfs -text
 *.ktx               filter=lfs diff=lfs merge=lfs -text
 *.ktx2              filter=lfs diff=lfs merge=lfs -text
+*.astc              filter=lfs diff=lfs merge=lfs -text
 *.pam               filter=lfs diff=lfs merge=lfs -text
 *.pbm               filter=lfs diff=lfs merge=lfs -text
 *.pgm               filter=lfs diff=lfs merge=lfs -text