diff --git a/classes/sdcard_image-rpi.bbclass b/classes/sdcard_image-rpi.bbclass
index eaa42f9..8120620 100644
--- a/classes/sdcard_image-rpi.bbclass
+++ b/classes/sdcard_image-rpi.bbclass
@@ -1,3 +1,5 @@
+inherit image_types
+
 #
 # Create an image that can by written onto a SD card using dd.
 #