diff --git a/libnfc/buses/Makefile.am b/libnfc/buses/Makefile.am
index b6adc4b..d11346e 100644
--- a/libnfc/buses/Makefile.am
+++ b/libnfc/buses/Makefile.am
@@ -3,7 +3,7 @@ AM_CPPFLAGS = $(all_includes) $(LIBNFC_CFLAGS)
 
 noinst_LTLIBRARIES = libnfcbuses.la
 
-libnfcbuses_la_SOURCES = 
+libnfcbuses_la_SOURCES = empty.c
 libnfcbuses_la_CFLAGS = -I$(top_srcdir)/libnfc
 libnfcbuses_la_LIBADD = 
 EXTRA_DIST =
diff --git a/libnfc/buses/empty.c b/libnfc/buses/empty.c
new file mode 100644
index 0000000..fedfa63
--- /dev/null
+++ b/libnfc/buses/empty.c
@@ -0,0 +1 @@
+/* empty source code file */