diff --git a/tools/codegen/src/lib.rs b/tools/codegen/src/lib.rs
index a47924d4..4211e679 100644
--- a/tools/codegen/src/lib.rs
+++ b/tools/codegen/src/lib.rs
@@ -2,14 +2,11 @@
 
 #![allow(clippy::missing_panics_doc, clippy::too_long_first_doc_paragraph)]
 
-use std::{env, path::PathBuf};
+use std::{env, path::Path};
 
 pub use install_action_manifest_schema::*;
 
 #[must_use]
-pub fn workspace_root() -> PathBuf {
-    let mut dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
-    dir.pop(); // codegen
-    dir.pop(); // tools
-    dir
+pub fn workspace_root() -> &'static Path {
+    Path::new(env!("CARGO_MANIFEST_DIR").strip_suffix("tools/codegen").unwrap())
 }
diff --git a/tools/codegen/src/main.rs b/tools/codegen/src/main.rs
index b7cc38d5..1c91931f 100644
--- a/tools/codegen/src/main.rs
+++ b/tools/codegen/src/main.rs
@@ -32,7 +32,7 @@ fn main() -> Result<()> {
     let version_req_given = version_req.is_some();
     let skip_existing_manifest_versions = std::env::var("SKIP_EXISTING_MANIFEST_VERSIONS").is_ok();
 
-    let workspace_root = &workspace_root();
+    let workspace_root = workspace_root();
     let manifest_path = &workspace_root.join("manifests").join(format!("{package}.json"));
     let download_cache_dir = &workspace_root.join("tools/codegen/tmp/cache").join(package);
     fs::create_dir_all(manifest_path.parent().unwrap())?;
diff --git a/tools/codegen/src/tools-markdown.rs b/tools/codegen/src/tools-markdown.rs
index 59fec6a9..53a5fe1d 100644
--- a/tools/codegen/src/tools-markdown.rs
+++ b/tools/codegen/src/tools-markdown.rs
@@ -40,9 +40,9 @@ fn main() -> Result<()> {
 
     let workspace_root = workspace_root();
 
-    let mut manifest_dir = workspace_root.clone();
+    let mut manifest_dir = workspace_root.to_owned();
     manifest_dir.push("manifests");
-    let mut base_info_dir = workspace_root.clone();
+    let mut base_info_dir = workspace_root.to_owned();
     base_info_dir.push("tools");
     base_info_dir.push("codegen");
     base_info_dir.push("base");
@@ -112,7 +112,7 @@ fn main() -> Result<()> {
 
     tools.sort_by(|x, y| x.name.cmp(&y.name));
 
-    let mut markdown_file = workspace_root.clone();
+    let mut markdown_file = workspace_root.to_owned();
     markdown_file.push("TOOLS.md");
 
     let mut file = BufWriter::new(fs::File::create(markdown_file).unwrap()); // Buffered because it is written many times.