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-rw-r--r--src/tools/error_index_generator/book_config.toml1
-rw-r--r--src/tools/error_index_generator/main.rs3
2 files changed, 1 insertions, 3 deletions
diff --git a/src/tools/error_index_generator/book_config.toml b/src/tools/error_index_generator/book_config.toml
index 885100ae3a4..2701ad917bb 100644
--- a/src/tools/error_index_generator/book_config.toml
+++ b/src/tools/error_index_generator/book_config.toml
@@ -7,6 +7,7 @@ src = ""
 git-repository-url = "https://github.com/rust-lang/rust/"
 additional-css = ["error-index.css"]
 additional-js = ["error-index.js"]
+input-404 = ""
 
 [output.html.search]
 enable = true
diff --git a/src/tools/error_index_generator/main.rs b/src/tools/error_index_generator/main.rs
index 2ccb6b81233..98eda97e236 100644
--- a/src/tools/error_index_generator/main.rs
+++ b/src/tools/error_index_generator/main.rs
@@ -171,9 +171,6 @@ This page lists all the error codes emitted by the Rust compiler.
 </html>"#,
     )?;
 
-    // No need for a 404 file, it's already handled by the server.
-    fs::remove_file(output_path.join("error_codes/404.html"))?;
-
     Ok(())
 }