rtbuf/rtbuf

diff --git a/Makefile.am b/Makefile.am
index 959ea44..7068bc6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -90,6 +90,7 @@ librtbuf_signal_la_LIBADD = ${SIGNAL_LIBS} librtbuf_music.la librtbuf.la
 librtbuf_signal_la_SOURCES = \
 	rtbuf_signal.c \
 	rtbuf_signal_delay.c \
+	rtbuf_signal_flanger.c \
 	rtbuf_signal_sinus.c \
 	rtbuf_signal_square.c \
 	rtbuf_signal_type.h