diff --git a/fs/partitions/ultrix.c b/fs/partitions/ultrix.c
index 8a8d4d9..ec852c1 100644
--- a/fs/partitions/ultrix.c
+++ b/fs/partitions/ultrix.c
@@ -7,6 +7,7 @@
  */
 
 #include "check.h"
+#include "ultrix.h"
 
 int ultrix_partition(struct parsed_partitions *state, struct block_device *bdev)
 {