diff --git a/src/bootstrap/doc.rs b/src/bootstrap/doc.rs
index 271db98638b5a..16e8ee182bd8e 100644
--- a/src/bootstrap/doc.rs
+++ b/src/bootstrap/doc.rs
@@ -490,7 +490,7 @@ impl Step for Std {
         // for which docs must be built.
         if !build.config.compiler_docs {
             cargo.arg("--no-deps");
-            for krate in &["alloc", "collections", "core", "std", "std_unicode"] {
+            for krate in &["alloc", "core", "std", "std_unicode"] {
                 cargo.arg("-p").arg(krate);
                 // Create all crate output directories first to make sure rustdoc uses
                 // relative links.