diff --git a/src/test/rustdoc/auxiliary/my-core.rs b/src/test/rustdoc/auxiliary/my-core.rs
index 999dfbdd8a3..54e986be9ec 100644
--- a/src/test/rustdoc/auxiliary/my-core.rs
+++ b/src/test/rustdoc/auxiliary/my-core.rs
@@ -1,5 +1,6 @@
 #![feature(no_core, lang_items)]
 #![no_core]
+#![crate_type="rlib"]
 
 #[lang = "char"]
 impl char {
diff --git a/src/test/rustdoc/intra-link-prim-methods-external-core.rs b/src/test/rustdoc/intra-link-prim-methods-external-core.rs
index 1569cf47340..b9bdd86ecc5 100644
--- a/src/test/rustdoc/intra-link-prim-methods-external-core.rs
+++ b/src/test/rustdoc/intra-link-prim-methods-external-core.rs
@@ -6,6 +6,7 @@
 #![deny(intra_doc_link_resolution_failure)]
 #![feature(no_core, lang_items)]
 #![no_core]
+#![crate_type = "rlib"]
 
 // @has intra_link_prim_methods_external_core/index.html
 // @has - '//*[@id="main"]//a[@href="https://doc.rust-lang.org/nightly/std/primitive.char.html"]' 'char'
diff --git a/src/test/rustdoc/intra-link-prim-methods-local.rs b/src/test/rustdoc/intra-link-prim-methods-local.rs
index ea64efe6d67..d24cd2cbb5e 100644
--- a/src/test/rustdoc/intra-link-prim-methods-local.rs
+++ b/src/test/rustdoc/intra-link-prim-methods-local.rs
@@ -1,6 +1,7 @@
 #![deny(intra_doc_link_resolution_failure)]
 #![feature(no_core, lang_items)]
 #![no_core]
+#![crate_type = "rlib"]
 
 // ignore-tidy-linelength