diff --git a/control/Makefile.am b/control/Makefile.am
index 04d7d96..7599977 100644
--- a/control/Makefile.am
+++ b/control/Makefile.am
@@ -5,6 +5,7 @@
 	phosphor-fan-control
 
 phosphor_fan_control_SOURCES = \
+	argument.cpp \
 	fan.cpp \
 	main.cpp \
 	manager.cpp \