diff --git a/src/main.rs b/src/main.rs
index 5e0d558..6fde423 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -42,16 +42,6 @@ impl Default for DiskDeltaTracker {
 }
 
 impl DiskDeltaTracker {
-	pub fn delta_all(&mut self, disks: BTreeMap<String, BlockDeviceStats>) -> (u64, u64) {
-		let mut r_tot : u64 = 0;
-		let mut w_tot : u64 = 0;
-		for drive in disks.values() {
-			r_tot += drive.read_sectors as u64;
-			w_tot += drive.write_sectors as u64;
-		}
-		return self.delta(r_tot, w_tot);
-	}
-
 	pub fn delta(&mut self, r: u64, w: u64) -> (u64, u64) {
 		let out = (r - self.r, w - self.w);
 		self.r = r;
@@ -149,7 +139,8 @@ async fn stats_delta(
 		let net_tracker = store_disk.get_mut(&session).unwrap();
 
 		let disks = sys.block_device_statistics().map_err(to_403_err)?;
-		(disk_r, disk_w) = net_tracker.delta_all(disks);
+		let disk = disks.get("sda2").ok_or(Unauthorized(Some("not found".to_string())))?;
+		(disk_r, disk_w) = net_tracker.delta(disk.read_sectors as u64, disk.write_sectors as u64);
 	}
 
 	Ok(Json(SystemInfoView {
@@ -167,7 +158,7 @@ async fn stats_delta(
 async fn stats_total() -> Json<SystemInfoView> {
 	let sys = System::new();
 
-	let (net_tx, net_rx) = match sys.network_stats(&"enp5s0".to_string()) {
+	let (net_tx, net_rx) = match sys.network_stats(&"eth0".to_string()) {
 		Ok(stats) => (stats.tx_bytes.as_u64(), stats.rx_bytes.as_u64()),
 		Err(_e) => (0, 0),
 	};