diff --git a/motorApp/Makefile b/motorApp/Makefile
index c6efa362..19fade33 100644
--- a/motorApp/Makefile
+++ b/motorApp/Makefile
@@ -24,6 +24,7 @@ ifdef MPF_SERIAL
 DIRS += NewportSrc
 DIRS += ImsSrc
 DIRS += AcsSrc
+DIRS += MclennanSrc
 endif
 
 DIRS += Db