diff --git a/Makefile.am b/Makefile.am
index 3eef41a..0af260f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,8 @@
 
 libtimemanager_la_SOURCES = \
 	epoch_base.cpp \
-	bmc_epoch.cpp
+	bmc_epoch.cpp \
+	host_epoch.cpp
 
 phosphor_timemanager_SOURCES = \
 	main.cpp