diff --git a/src/Makefile.am b/src/Makefile.am
index e4c7544..53b2903 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -9,4 +9,4 @@
 		trau_frame.c paging.c
 bsc_hack_LDADD = -ldl -ldbi
 
-bs11_config_SOURCES = bs11_config.c abis_nm.c gsm_data.c msgb.c debug.c select.c timer.c
+bs11_config_SOURCES = bs11_config.c abis_nm.c gsm_data.c msgb.c debug.c select.c timer.c rs232.c