diff --git a/Cargo.toml b/Cargo.toml
index d0e7949..09b4b99 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ members = ["codegen", "tools/create-data-file", "tools/dump-data-file"]
 
 [package]
 name = "data_bucket"
-version = "0.3.9"
+version = "0.3.10"
 edition = "2021"
 authors = ["Handy-caT"]
 license = "MIT"
diff --git a/src/util/sized.rs b/src/util/sized.rs
index 61ad529..5278af0 100644
--- a/src/util/sized.rs
+++ b/src/util/sized.rs
@@ -176,6 +176,10 @@ impl<T: SizeMeasurable> SizeMeasurable for Option<T>
 where
     T: SizeMeasurable,
 {
+    fn align() -> Option<usize> {
+        T::align()
+    }
+
     fn aligned_size(&self) -> usize {
         size_of::<Option<T>>()
     }
@@ -295,11 +299,24 @@ mod test {
             to_bytes::<rkyv::rancor::Error>(&t).unwrap().len()
         );
         let t = (u8::MAX, Link::default());
+        assert_eq!(
+            t.aligned_size(),
+            to_bytes::<rkyv::rancor::Error>(&t).unwrap().len()
+        );
+        let t = (Some(0.0f64), Link::default());
         assert_eq!(
             t.aligned_size(),
             to_bytes::<rkyv::rancor::Error>(&t).unwrap().len()
         )
     }
+    #[test]
+    fn test_option() {
+        let t = Some(0.0f64);
+        assert_eq!(
+            t.aligned_size(),
+            to_bytes::<rkyv::rancor::Error>(&t).unwrap().len()
+        );
+    }
 
     #[test]
     fn test_string() {