diff --git a/zed-rpc/proto/zed.proto b/zed-rpc/proto/zed.proto
index eb994403d27e4c1e3d850fe51066193170dc4bb8..fb71c63c51f733ef1e6c1637defe64db46eaac51 100644
--- a/zed-rpc/proto/zed.proto
+++ b/zed-rpc/proto/zed.proto
@@ -17,7 +17,7 @@ message Envelope {
 }
 
 message Auth {
-    uint64 user_id = 1;
+    int32 user_id = 1;
     string access_token = 2;
 }
 
diff --git a/zed/src/workspace.rs b/zed/src/workspace.rs
index 14e929bea4a17a16065cfcb28b51bf65ec2b3106..d9dc1c313f632434386bc4c38c9faacdcf52290b 100644
--- a/zed/src/workspace.rs
+++ b/zed/src/workspace.rs
@@ -697,7 +697,7 @@ impl Workspace {
                 .request(
                     connection_id,
                     proto::Auth {
-                        user_id: user_id.parse::<u64>()?,
+                        user_id: user_id.parse()?,
                         access_token,
                     },
                 )