diff --git a/ChangeLog b/ChangeLog
index bc9318701..84fcc5627 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2011-04-06  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* include/grub/fs.h (grub_dirhook_info): Use unsigned for 1-bit fields.
+
 2011-04-06  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* util/grub.d/00_header.in: Don't use LANG unless unifont is available.
diff --git a/include/grub/fs.h b/include/grub/fs.h
index 994eb8080..2c39332a9 100644
--- a/include/grub/fs.h
+++ b/include/grub/fs.h
@@ -31,9 +31,9 @@ struct grub_file;
 
 struct grub_dirhook_info
 {
-  int dir:1;
-  int mtimeset:1;
-  int case_insensitive:1;
+  unsigned dir:1;
+  unsigned mtimeset:1;
+  unsigned case_insensitive:1;
   grub_int32_t mtime;
 };