diff --git a/src/key.rs b/src/key.rs
index 558c5b91..54959d6e 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -11,7 +11,7 @@ use std::{
 use anyhow::{anyhow, ensure, Result};
 use bch_bindgen::{
     bcachefs::{self, bch_key, bch_sb_handle},
-    c::bch2_chacha_encrypt_key,
+    c::{bch2_chacha_encrypt_key, bch_sb_field_crypt},
     keyutils::{self, keyctl_search},
 };
 use byteorder::{LittleEndian, ReadBytesExt};
@@ -66,7 +66,7 @@ impl KeyHandle {
         let bch_key_magic = BCH_KEY_MAGIC.as_bytes().read_u64::<LittleEndian>().unwrap();
 
         let crypt = sb.sb().crypt().unwrap();
-        let crypt_ptr = ptr::addr_of!(*crypt).cast_mut();
+        let crypt_ptr = (crypt as *const bch_sb_field_crypt).cast_mut();
 
         let mut output: bch_key =
             unsafe { bcachefs::derive_passphrase(crypt_ptr, passphrase.get().as_ptr()) };
diff --git a/src/wrappers/handle.rs b/src/wrappers/handle.rs
index b5b49628..b9a4a63d 100644
--- a/src/wrappers/handle.rs
+++ b/src/wrappers/handle.rs
@@ -1,4 +1,4 @@
-use std::{path::Path, ptr};
+use std::path::Path;
 
 use bch_bindgen::c::{
     bcache_fs_close, bcache_fs_open, bch_ioctl_subvolume, bchfs_handle, BCH_IOCTL_SUBVOLUME_CREATE,
@@ -42,7 +42,7 @@ pub enum BcachefsIoctlPayload {
 impl From<&BcachefsIoctlPayload> for *const libc::c_void {
     fn from(value: &BcachefsIoctlPayload) -> Self {
         match value {
-            BcachefsIoctlPayload::Subvolume(p) => ptr::addr_of!(p).cast(),
+            BcachefsIoctlPayload::Subvolume(p) => (p as *const bch_ioctl_subvolume).cast(),
         }
     }
 }