diff --git a/pci_rpc/src/lib.rs b/pci_rpc/src/lib.rs
index ec2a25d..d5860b3 100644
--- a/pci_rpc/src/lib.rs
+++ b/pci_rpc/src/lib.rs
@@ -42,7 +42,7 @@ fn callback(call: IncomingCall) {
     let server_lock = SERVER.read();
     let server = server_lock.as_ref().unwrap();
     if call.func == 0 {
-        let (bus, dev, func) = postcard::from_bytes(&call.args).unwrap();
+        let (bus, dev, func) = postcard::from_bytes(call.args()).unwrap();
         let ret = postcard::to_stdvec(&server.get_bars(bus, dev, func)).unwrap();
         call.send_return(&ret);
     }