diff --git a/src/cert.rs b/src/cert.rs
index 277b47c..f7a6c90 100644
--- a/src/cert.rs
+++ b/src/cert.rs
@@ -70,7 +70,7 @@ impl BIMICertificate {
             chain: chain_stack,
             not_before,
             not_after,
-            key_usages: key_usages.unwrap_or(vec![]),
+            key_usages: key_usages.unwrap_or_default(),
         };
 
         Ok(identity)
diff --git a/src/x509_helpers.rs b/src/x509_helpers.rs
index 5282df7..155e91c 100644
--- a/src/x509_helpers.rs
+++ b/src/x509_helpers.rs
@@ -153,7 +153,7 @@ pub fn x509_bimi_get_ext(cert: &X509) -> Option<Vec<u8>> {
         }
 
         let len = openssl_ffi::ASN1_STRING_length(obj_data as *mut _);
-        let slice = slice::from_raw_parts(ptr as *const u8, len as usize);
+        let slice = slice::from_raw_parts(ptr, len as usize);
 
         Some(slice.to_vec())
     }