diff --git a/motorApp/Makefile b/motorApp/Makefile
index 8d11626f..b998ad8d 100644
--- a/motorApp/Makefile
+++ b/motorApp/Makefile
@@ -29,6 +29,7 @@ DIRS += NewportSrc
 DIRS += ImsSrc
 DIRS += AcsSrc
 DIRS += MclennanSrc
+DIRS += PiSrc
 endif
 
 DIRS += Db