diff --git a/examples/stable-diffusion/main.rs b/examples/stable-diffusion/main.rs
index 109a0113..f0454139 100644
--- a/examples/stable-diffusion/main.rs
+++ b/examples/stable-diffusion/main.rs
@@ -36,7 +36,6 @@
 //
 //   cargo run --release --example tensor-tools cp ./data/vae.npz ./data/vae.ot
 //   cargo run --release --example tensor-tools cp ./data/unet.npz ./data/unet.ot
-///
 // TODO: fix tensor_tools so that it works properly there.
 // TODO: Split this file, probably in a way similar to huggingface/diffusers.
 use std::collections::{HashMap, HashSet};
diff --git a/examples/yolo/darknet.rs b/examples/yolo/darknet.rs
index 0f744057..9ce3b046 100644
--- a/examples/yolo/darknet.rs
+++ b/examples/yolo/darknet.rs
@@ -17,7 +17,7 @@ struct Block {
 
 impl Block {
     fn get(&self, key: &str) -> Result<&str> {
-        match self.parameters.get(&key.to_string()) {
+        match self.parameters.get(key) {
             None => bail!("cannot find {} in {}", key, self.block_type),
             Some(value) => Ok(value),
         }
@@ -32,7 +32,7 @@ pub struct Darknet {
 
 impl Darknet {
     fn get(&self, key: &str) -> Result<&str> {
-        match self.parameters.get(&key.to_string()) {
+        match self.parameters.get(key) {
             None => bail!("cannot find {} in net parameters", key),
             Some(value) => Ok(value),
         }