diff --git a/Makefile.am b/Makefile.am
index 7b34537..61c6782 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -7,7 +7,8 @@
 libfan_la_CXXFLAGS =
 	$(SDBUSPLUS_CFLAGS)
 libfan_la_SOURCES = \
-	utility.cpp
+	utility.cpp \
+	timer.cpp
 
 SUBDIRS = .