diff --git a/ext/Makefile.am b/ext/Makefile.am
index 82fd7a3ecb..e136a67c69 100644
--- a/ext/Makefile.am
+++ b/ext/Makefile.am
@@ -256,4 +256,4 @@ DIST_SUBDIRS=\
 	mad mikmod mjpegtools mpeg2dec \
 	openquicktime raw1394 rtp \
 	sdl shout sidplay \
-	smoothwave tarkin vorbis xmms
+	smoothwave swfdec tarkin vorbis xmms