diff --git a/tools/aapt/Package.cpp b/tools/aapt/Package.cpp
index 641c34bd2dda5..d631f35311279 100644
--- a/tools/aapt/Package.cpp
+++ b/tools/aapt/Package.cpp
@@ -33,7 +33,7 @@ static const char* kNoCompressExt[] = {
     ".mpg", ".mpeg", ".mid", ".midi", ".smf", ".jet",
     ".rtttl", ".imy", ".xmf", ".mp4", ".m4a",
     ".m4v", ".3gp", ".3gpp", ".3g2", ".3gpp2",
-    ".amr", ".awb", ".wma", ".wmv", ".webm"
+    ".amr", ".awb", ".wma", ".wmv", ".webm", ".mkv"
 };
 
 /* fwd decls, so I can write this downward */