diff --git a/src/modules/Makefile_conf_randr.am b/src/modules/Makefile_conf_randr.am
index 50fbc6098..48bae4fb1 100644
--- a/src/modules/Makefile_conf_randr.am
+++ b/src/modules/Makefile_conf_randr.am
@@ -12,7 +12,9 @@ conf_randr_module_la_SOURCES = conf_randr/e_mod_main.c \
 			       conf_randr/e_int_config_randr.c \
 			       conf_randr/e_int_config_randr.h \
                                conf_randr/e_smart_randr.c \
-                               conf_randr/e_smart_randr.h
+                               conf_randr/e_smart_randr.h \
+                               conf_randr/e_smart_monitor.c \
+                               conf_randr/e_smart_monitor.h
 
 .PHONY: conf_randr install-conf_randr
 conf_randr: $(conf_randrpkg_LTLIBRARIES) $(conf_randr_DATA)