diff --git a/artiq/firmware/libproto_artiq/mgmt_proto.rs b/artiq/firmware/libproto_artiq/mgmt_proto.rs
index 93f81c40b..911799ef4 100644
--- a/artiq/firmware/libproto_artiq/mgmt_proto.rs
+++ b/artiq/firmware/libproto_artiq/mgmt_proto.rs
@@ -1,5 +1,5 @@
 use core::str::Utf8Error;
-use alloc::{Vec, String};
+use alloc::{vec::Vec, string::String};
 #[cfg(feature = "log")]
 use log;
 
diff --git a/artiq/firmware/libproto_artiq/session_proto.rs b/artiq/firmware/libproto_artiq/session_proto.rs
index db353e874..99412de10 100644
--- a/artiq/firmware/libproto_artiq/session_proto.rs
+++ b/artiq/firmware/libproto_artiq/session_proto.rs
@@ -1,5 +1,5 @@
 use core::str::Utf8Error;
-use alloc::{Vec, String};
+use alloc::{vec::Vec, string::String};
 
 use io::{Read, ProtoRead, Write, ProtoWrite, Error as IoError, ReadStringError};