diff --git a/Makefile b/Makefile
index bb502786d..4007f316e 100644
--- a/Makefile
+++ b/Makefile
@@ -51,7 +51,7 @@ BUILD_SILK=1
 BUILD_TUNNEL=0
 BUILD_WEBRTC_AECM=1
 BUILD_OPUS=1
-BUILD_MATROSKA=0
+BUILD_MATROSKA=1
 BUILD_WEBRTC_ISAC=1
 BUILD_FOR_X86=1
 USE_JAVAH=1
diff --git a/README b/README
index 6dcd6e42a..aaea8890d 100644
--- a/README
+++ b/README
@@ -112,3 +112,6 @@ BUILD_OPUS
 
 BUILD_UPNP
 	values: 0 (don't build upnp), 1 (do build upnp), default value: 1
+
+BUILD_MATROSKA
+	values: 0 (don't build matroska and ebml), 1 (do build matroska and ebml), default value: 1