1 files changed, 3 insertions, 0 deletions
diff --git a/src/ufs.h b/src/ufs.h
index 88229e45..5ddfb755 100644
--- a/src/ufs.h
+++ b/src/ufs.h
@@ -21,6 +21,8 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  */
+#ifndef _UFS_H
+#define _UFS_H
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -487,3 +489,4 @@ int recover_ufs(const disk_t *disk_car, const struct ufs_super_block *sb, partit
 #ifdef __cplusplus
 } /* closing brace for extern "C" */
 #endif
+#endif