diff --git a/site_ansto/Makefile b/site_ansto/Makefile
index 617e37bf..508b353b 100644
--- a/site_ansto/Makefile
+++ b/site_ansto/Makefile
@@ -85,6 +85,8 @@ all: ../matrix/libmatrix.a $(COREOBJ:%=../%) $(EXTRA:%=../%) libansto.a libhards
 #TODO Add targets for other instruments
 echidna: all
 	make -C instrument/hrpd
+platypus: all
+	make -C instrument/reflectometer
 wombat: all
 	make -C instrument/hipd