diff --git a/ext/Makefile.am b/ext/Makefile.am
index 938d46a7d2..e20bd18213 100644
--- a/ext/Makefile.am
+++ b/ext/Makefile.am
@@ -228,4 +228,5 @@ DIST_SUBDIRS= \
 	faac \
 	faad \
 	gsm \
-	sdl
+	sdl \
+	directfb