diff --git a/src/include/gpxe/initrd.h b/src/include/gpxe/initrd.h
index 4533a124..1871bf78 100644
--- a/src/include/gpxe/initrd.h
+++ b/src/include/gpxe/initrd.h
@@ -9,6 +9,6 @@
  */
 
 #include <gpxe/image.h>
-extern struct image_type initrdimage_image_type __image_type ( PROBE_NORMAL );
+extern struct image_type initrd_image_type __image_type ( PROBE_NORMAL );
 
 #endif /* _GPXE_INITRD_H */