diff --git a/commons/zenoh-shm/src/api/provider/types.rs b/commons/zenoh-shm/src/api/provider/types.rs
index 0466f2a554..03e40793dc 100644
--- a/commons/zenoh-shm/src/api/provider/types.rs
+++ b/commons/zenoh-shm/src/api/provider/types.rs
@@ -61,7 +61,7 @@ impl AllocAlignment {
     #[zenoh_macros::unstable_doc]
     pub fn new(pow: u8) -> Result<Self, ZLayoutError> {
         match pow {
-            pow if pow < 64 => Ok(Self { pow }),
+            pow if pow < usize::BITS as u8 => Ok(Self { pow }),
             _ => Err(ZLayoutError::IncorrectLayoutArgs),
         }
     }