diff --git a/tests/client_auth_revocation.rs b/tests/client_auth_revocation.rs
index 333797f6..d7aba382 100644
--- a/tests/client_auth_revocation.rs
+++ b/tests/client_auth_revocation.rs
@@ -14,6 +14,7 @@
 
 extern crate webpki;
 
+#[cfg(feature = "alloc")]
 static ALL_SIGALGS: &[&webpki::SignatureAlgorithm] = &[
     &webpki::ECDSA_P256_SHA256,
     &webpki::ECDSA_P256_SHA384,
@@ -61,6 +62,7 @@ impl<'a> webpki::CrlProvider<'a> for TestCrls<'a> {
     }
 }
 
+#[cfg(feature = "alloc")]
 fn check_cert(
     ee: &[u8],
     intermediates: &[&[u8]],