diff --git a/projects/RPi/devices/Slice/options b/projects/RPi/devices/Slice/options
index 7abb96dacc..c39d81d629 100644
--- a/projects/RPi/devices/Slice/options
+++ b/projects/RPi/devices/Slice/options
@@ -13,3 +13,6 @@
 
   # Additional drivers
     ADDITIONAL_DRIVERS="${ADDITIONAL_DRIVERS} slice-drivers"
+
+  # set the addon project
+    ADDON_PROJECT="RPi"