diff --git a/src/api2/node.rs b/src/api2/node.rs
index 78e0fa44..fc32193b 100644
--- a/src/api2/node.rs
+++ b/src/api2/node.rs
@@ -121,7 +121,7 @@ async fn termproxy(
         )?;
 
     let mut command = Vec::new();
-    match cmd.as_ref().map(|x| x.as_str()) {
+    match cmd.as_deref() {
         Some("login") | None => {
             command.push("login");
             if userid == "root@pam" {
diff --git a/src/tools/disks.rs b/src/tools/disks.rs
index e3b93e02..bfea5a8b 100644
--- a/src/tools/disks.rs
+++ b/src/tools/disks.rs
@@ -105,7 +105,7 @@ impl DiskManage {
                 let mut mounted = HashSet::new();
 
                 for (_id, mp) in self.mount_info()? {
-                    let source = match mp.mount_source.as_ref().map(OsString::as_os_str) {
+                    let source = match mp.mount_source.as_deref() {
                         Some(s) => s,
                         None => continue,
                     };