diff --git a/src/linux/mem_reader.rs b/src/linux/mem_reader.rs
index 1e9fc87e..e4a50411 100644
--- a/src/linux/mem_reader.rs
+++ b/src/linux/mem_reader.rs
@@ -97,7 +97,7 @@ impl MemReader {
pub fn read_to_vec(
&mut self,
src: usize,
- length: std::num::NonZero,
+ length: std::num::NonZeroUsize,
) -> Result, CopyFromProcessError> {
let length = length.into();
let layout =
@@ -258,7 +258,7 @@ impl PtraceDumper {
src: usize,
length: usize,
) -> Result, crate::errors::DumperError> {
- let length = std::num::NonZero::new(length).ok_or_else(|| {
+ let length = std::num::NonZeroUsize::new(length).ok_or_else(|| {
crate::errors::DumperError::CopyFromProcessError(CopyFromProcessError {
src,
child: pid,
diff --git a/src/linux/module_reader.rs b/src/linux/module_reader.rs
index 08ee8189..f40e28cc 100644
--- a/src/linux/module_reader.rs
+++ b/src/linux/module_reader.rs
@@ -55,7 +55,7 @@ impl<'buf> ProcessMemory<'buf> {
match self {
Self::Process(pr) => {
let error = |e| error(Some(pr.start_address), e);
- let len = std::num::NonZero::new(length as usize)
+ let len = std::num::NonZeroUsize::new(length as usize)
.ok_or_else(|| error(nix::Error::EINVAL))?;
let proc_offset = pr
.start_address