diff --git a/interface/src/state/account.rs b/interface/src/state/account.rs
index a734cb1d..aa6ba84d 100644
--- a/interface/src/state/account.rs
+++ b/interface/src/state/account.rs
@@ -151,7 +151,7 @@ impl Account {
     }
 }
 
-impl Transmutable for Account {
+unsafe impl Transmutable for Account {
     const LEN: usize = core::mem::size_of::<Account>();
 }
 
diff --git a/interface/src/state/mint.rs b/interface/src/state/mint.rs
index 489c9ef0..655173e6 100644
--- a/interface/src/state/mint.rs
+++ b/interface/src/state/mint.rs
@@ -84,7 +84,7 @@ impl Mint {
     }
 }
 
-impl Transmutable for Mint {
+unsafe impl Transmutable for Mint {
     /// The length of the `Mint` account data.
     const LEN: usize = core::mem::size_of::<Mint>();
 }
diff --git a/interface/src/state/mod.rs b/interface/src/state/mod.rs
index 67de793b..79505eed 100644
--- a/interface/src/state/mod.rs
+++ b/interface/src/state/mod.rs
@@ -10,10 +10,12 @@ pub type COption<T> = ([u8; 4], T);
 
 /// Marker trait for types that can be cast from a raw pointer.
 ///
+/// # Safety
+///
 /// It is up to the type implementing this trait to guarantee that the cast is
 /// safe, i.e., the fields of the type are well aligned and there are no padding
 /// bytes.
-pub trait Transmutable {
+pub unsafe trait Transmutable {
     /// The length of the type.
     ///
     /// This must be equal to the size of each individual field in the type.
diff --git a/interface/src/state/multisig.rs b/interface/src/state/multisig.rs
index b579c3d1..7e453fd2 100644
--- a/interface/src/state/multisig.rs
+++ b/interface/src/state/multisig.rs
@@ -38,7 +38,7 @@ impl Multisig {
     }
 }
 
-impl Transmutable for Multisig {
+unsafe impl Transmutable for Multisig {
     /// The length of the `Multisig` account data.
     const LEN: usize = core::mem::size_of::<Multisig>();
 }