diff --git a/src/hugetlb.rs b/src/hugetlb.rs
index ccd92fa..939b5dd 100644
--- a/src/hugetlb.rs
+++ b/src/hugetlb.rs
@@ -73,7 +73,7 @@ impl MapHugeFlag
     }
 
     /// The kernel's default huge-page size.
-    pub const HUGE_DEFAULT: Self = Self(MAP_HUGE_SHIFT);
+    pub const HUGE_DEFAULT: Self = Self(0 << MAP_HUGE_SHIFT);
     /// Predefined `MAP_HUGE_2MB` mask,
     pub const HUGE_2MB: Self = Self(libc::MAP_HUGE_2MB);
     /// Predefined `MAP_HUGE_1GB` mask,