diff --git a/src/cargo/ops/cargo_doc.rs b/src/cargo/ops/cargo_doc.rs
index 065888a70..9e868c206 100644
--- a/src/cargo/ops/cargo_doc.rs
+++ b/src/cargo/ops/cargo_doc.rs
@@ -2,7 +2,6 @@ use crate::core::{Shell, Workspace};
 use crate::ops;
 use crate::util::config::PathAndArgs;
 use crate::util::CargoResult;
-use serde::Deserialize;
 use std::path::Path;
 use std::path::PathBuf;
 use std::process::Command;
@@ -16,13 +15,6 @@ pub struct DocOptions {
     pub compile_opts: ops::CompileOptions,
 }
 
-#[derive(Deserialize)]
-struct CargoDocConfig {
-    /// Browser to use to open docs. If this is unset, the value of the environment variable
-    /// `BROWSER` will be used.
-    browser: Option<PathAndArgs>,
-}
-
 /// Main method for `cargo doc`.
 pub fn doc(ws: &Workspace<'_>, options: &DocOptions) -> CargoResult<()> {
     let compilation = ops::compile(ws, &options.compile_opts)?;
@@ -36,10 +28,8 @@ pub fn doc(ws: &Workspace<'_>, options: &DocOptions) -> CargoResult<()> {
             .join("index.html");
         if path.exists() {
             let config_browser = {
-                let cfg = ws.config().get::<CargoDocConfig>("doc")?;
-
-                cfg.browser
-                    .map(|path_args| (path_args.path.resolve_program(ws.config()), path_args.args))
+                let cfg: Option<PathAndArgs> = ws.config().get("doc.browser")?;
+                cfg.map(|path_args| (path_args.path.resolve_program(ws.config()), path_args.args))
             };
 
             let mut shell = ws.config().shell();
diff --git a/tests/testsuite/doc.rs b/tests/testsuite/doc.rs
index ecb54cf94..cd8712425 100644
--- a/tests/testsuite/doc.rs
+++ b/tests/testsuite/doc.rs
@@ -1188,13 +1188,12 @@ fn doc_extern_map_local() {
     p.change_file(
         ".cargo/config.toml",
         r#"
-        [doc.extern-map]
-        std = "local"
+[doc.extern-map]
+std = "local"
     "#,
     );
 
-
-    p.cargo("doc -Zrustdoc-map --open")
+    p.cargo("doc -v --no-deps -Zrustdoc-map --open")
         .env("BROWSER", "echo")
         .masquerade_as_nightly_cargo()
         .with_stderr_contains("[..] Documenting foo v0.1.0 ([..])")