diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs
index 58f7487a0fda..324c8aefc2df 100644
--- a/src/tools/build-manifest/src/main.rs
+++ b/src/tools/build-manifest/src/main.rs
@@ -301,11 +301,12 @@ impl Builder {
                 | PkgType::LlvmTools
                 | PkgType::RustAnalysis
                 | PkgType::JsonDocs
+                | PkgType::RustcDocs
                 | PkgType::RustcCodegenCranelift
                 | PkgType::LlvmBitcodeLinker => {
                     extensions.push(host_component(pkg));
                 }
-                PkgType::RustcDev | PkgType::RustcDocs => {
+                PkgType::RustcDev => {
                     extensions.extend(HOSTS.iter().map(|target| Component::from_pkg(pkg, target)));
                 }
                 PkgType::RustSrc => {