diff --git a/secret-memory/src/alloc/memsec/malloc.rs b/secret-memory/src/alloc/memsec/malloc.rs
index 5782624..a28568a 100644
--- a/secret-memory/src/alloc/memsec/malloc.rs
+++ b/secret-memory/src/alloc/memsec/malloc.rs
@@ -33,13 +33,10 @@ pub type MallocVec<T> = allocator_api2::vec::Vec<T, MallocAllocator>;
 /// # Example
 /// ```rust
 /// # use rosenpass_secret_memory::alloc::memsec::malloc::{malloc_box_try, MallocBox};
-/// # fn do_test() -> Result<(), Box<dyn std::error::Error>> {
 /// let data: u8 = 42;
 /// let malloc_box: MallocBox<u8> = malloc_box_try(data)?;
 /// # assert_eq!(*malloc_box, 42u8);
-/// # Ok(())
-/// # }
-/// # let _ = do_test();
+/// # Ok::<(), anyhow::Error>(())
 /// ```
 pub fn malloc_box_try<T>(x: T) -> Result<MallocBox<T>, AllocError> {
     MallocBox::<T>::try_new_in(x, MallocAllocator::new())
diff --git a/secret-memory/src/alloc/memsec/memfdsec.rs b/secret-memory/src/alloc/memsec/memfdsec.rs
index 4f5b063..a348b53 100644
--- a/secret-memory/src/alloc/memsec/memfdsec.rs
+++ b/secret-memory/src/alloc/memsec/memfdsec.rs
@@ -34,13 +34,10 @@ pub type MemfdSecVec<T> = allocator_api2::vec::Vec<T, MemfdSecAllocator>;
 /// # Example
 /// ```rust
 /// # use rosenpass_secret_memory::alloc::memsec::memfdsec::{memfdsec_box_try, MemfdSecBox};
-/// # fn do_test() -> Result<(), Box<dyn std::error::Error>> {
 /// let data: u8 = 42;
 /// let memfdsec_box: MemfdSecBox<u8> = memfdsec_box_try(data)?;
 /// # assert_eq!(*memfdsec_box, 42u8);
-/// # Ok(())
-/// # }
-/// # let _ = do_test();
+/// # Ok::<(), anyhow::Error>(())
 /// ```
 pub fn memfdsec_box_try<T>(x: T) -> Result<MemfdSecBox<T>, AllocError> {
     MemfdSecBox::<T>::try_new_in(x, MemfdSecAllocator::new())
diff --git a/secret-memory/src/alloc/mod.rs b/secret-memory/src/alloc/mod.rs
index 77a9d5a..2137e21 100644
--- a/secret-memory/src/alloc/mod.rs
+++ b/secret-memory/src/alloc/mod.rs
@@ -30,15 +30,13 @@ static ALLOC_TYPE: OnceLock<SecretAllocType> = OnceLock::new();
 /// # use std::alloc::Layout;
 /// # use allocator_api2::alloc::Allocator;
 /// # use rosenpass_secret_memory::alloc::{set_secret_alloc_type, SecretAlloc, SecretAllocType};
-/// # fn do_test () -> Result<(), Box<dyn std::error::Error>> {
 /// set_secret_alloc_type(SecretAllocType::MemsecMalloc);
 /// let secret_alloc = SecretAlloc::default();
 /// unsafe {
-///     let memory = secret_alloc.allocate(Layout::from_size_align_unchecked(42, 64))?;
+///     let memory = secret_alloc.allocate(Layout::from_size_align_unchecked(128, 32))?;
 /// }
-/// # Ok(())
-/// # }
-/// # let _ = do_test();
+/// # Ok::<(), anyhow::Error>(())
+/// ```
 /// ```
 pub fn set_secret_alloc_type(alloc_type: SecretAllocType) {
     ALLOC_TYPE.set(alloc_type).unwrap();
@@ -128,15 +126,12 @@ pub type SecretVec<T> = allocator_api2::vec::Vec<T, SecretAlloc>;
 /// ```rust
 /// # use rosenpass_secret_memory::alloc::{secret_box_try, SecretBox};
 /// # use rosenpass_secret_memory::alloc::SecretAllocType::MemsecMalloc;
-/// # use rosenpass_secret_memory::alloc::set_secret_alloc_type;
+/// use rosenpass_secret_memory::alloc::set_secret_alloc_type;
 /// set_secret_alloc_type(MemsecMalloc);
-/// # fn do_test() -> Result<(), Box<dyn std::error::Error>> {
 /// let data: u8 = 42;
 /// let secret_box: SecretBox<u8> = secret_box_try(data)?;
 /// # assert_eq!(*secret_box, 42u8);
-/// # Ok(())
-/// # }
-/// # let _ = do_test();
+/// # Ok::<(), anyhow::Error>(())
 /// ```
 pub fn secret_box_try<T>(x: T) -> Result<SecretBox<T>, AllocError> {
     SecretBox::<T>::try_new_in(x, SecretAlloc::default())