diff --git a/src/api/client_server/device.rs b/src/api/client_server/device.rs
index d0474c38..0cc76fde 100644
--- a/src/api/client_server/device.rs
+++ b/src/api/client_server/device.rs
@@ -51,7 +51,7 @@ pub async fn update_device_route(body: Ruma<update_device::v3::Request>) -> Resu
 		.get_device_metadata(sender_user, &body.device_id)?
 		.ok_or(Error::BadRequest(ErrorKind::NotFound, "Device not found."))?;
 
-	device.display_name = body.display_name.clone();
+	device.display_name.clone_from(&body.display_name);
 
 	services().users.update_device_metadata(sender_user, &body.device_id, &device)?;
 
diff --git a/src/api/client_server/membership.rs b/src/api/client_server/membership.rs
index 798575a8..ac5c9e11 100644
--- a/src/api/client_server/membership.rs
+++ b/src/api/client_server/membership.rs
@@ -240,7 +240,7 @@ pub async fn kick_user_route(body: Ruma<kick_user::v3::Request>) -> Result<kick_
 	.map_err(|_| Error::bad_database("Invalid member event in database."))?;
 
 	event.membership = MembershipState::Leave;
-	event.reason = body.reason.clone();
+	event.reason.clone_from(&body.reason);
 
 	let mutex_state =
 		Arc::clone(services().globals.roomid_mutex_state.write().await.entry(body.room_id.clone()).or_default());
@@ -347,7 +347,7 @@ pub async fn unban_user_route(body: Ruma<unban_user::v3::Request>) -> Result<unb
 	.map_err(|_| Error::bad_database("Invalid member event in database."))?;
 
 	event.membership = MembershipState::Leave;
-	event.reason = body.reason.clone();
+	event.reason.clone_from(&body.reason);
 
 	let mutex_state =
 		Arc::clone(services().globals.roomid_mutex_state.write().await.entry(body.room_id.clone()).or_default());
diff --git a/src/database/mod.rs b/src/database/mod.rs
index 0a550d1f..4fc9b924 100644
--- a/src/database/mod.rs
+++ b/src/database/mod.rs
@@ -803,7 +803,7 @@ impl KeyValueDatabase {
 						let rule = rules_list.content.get(content_rule_transformation[0]);
 						if rule.is_some() {
 							let mut rule = rule.unwrap().clone();
-							rule.rule_id = content_rule_transformation[1].to_owned();
+							content_rule_transformation[1].clone_into(&mut rule.rule_id);
 							rules_list.content.shift_remove(content_rule_transformation[0]);
 							rules_list.content.insert(rule);
 						}
@@ -823,7 +823,7 @@ impl KeyValueDatabase {
 							let rule = rules_list.underride.get(transformation[0]);
 							if let Some(rule) = rule {
 								let mut rule = rule.clone();
-								rule.rule_id = transformation[1].to_owned();
+								transformation[1].clone_into(&mut rule.rule_id);
 								rules_list.underride.shift_remove(transformation[0]);
 								rules_list.underride.insert(rule);
 							}
diff --git a/src/service/pusher/mod.rs b/src/service/pusher/mod.rs
index fc1078a8..79f61849 100644
--- a/src/service/pusher/mod.rs
+++ b/src/service/pusher/mod.rs
@@ -186,11 +186,11 @@ impl Service {
 
 				let mut device = Device::new(pusher.ids.app_id.clone(), pusher.ids.pushkey.clone());
 				device.data.default_payload = http.default_payload.clone();
-				device.data.format = http.format.clone();
+				device.data.format.clone_from(&http.format);
 
 				// Tweaks are only added if the format is NOT event_id_only
 				if !event_id_only {
-					device.tweaks = tweaks.clone();
+					device.tweaks.clone_from(&tweaks);
 				}
 
 				let d = vec![device];
diff --git a/src/service/users/mod.rs b/src/service/users/mod.rs
index 1b1622ee..f7c0ca74 100644
--- a/src/service/users/mod.rs
+++ b/src/service/users/mod.rs
@@ -69,10 +69,10 @@ impl Service {
 		for (list_id, list) in &mut request.lists {
 			if let Some(cached_list) = cached.lists.get(list_id) {
 				if list.sort.is_empty() {
-					list.sort = cached_list.sort.clone();
+					list.sort.clone_from(&cached_list.sort);
 				};
 				if list.room_details.required_state.is_empty() {
-					list.room_details.required_state = cached_list.room_details.required_state.clone();
+					list.room_details.required_state.clone_from(&cached_list.room_details.required_state);
 				};
 				list.room_details.timeline_limit =
 					list.room_details.timeline_limit.or(cached_list.room_details.timeline_limit);
@@ -106,7 +106,7 @@ impl Service {
 					(..) => {},
 				}
 				if list.bump_event_types.is_empty() {
-					list.bump_event_types = cached_list.bump_event_types.clone();
+					list.bump_event_types.clone_from(&cached_list.bump_event_types);
 				};
 			}
 			cached.lists.insert(list_id.clone(), list.clone());