diff --git a/.travis.yml b/.travis.yml
index f3d768871b..6e4f89f8ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,11 +17,13 @@ matrix:
         - cargo doc --no-deps --all-features
         - cargo test --benches
         - cargo test --features nightly
+        - cargo test --tests --no-default-features --features=alloc
       after_success:
         - travis-cargo --only nightly doc-upload
 
 script:
   - cargo test
+  - cargo test --tests --no-default-features
   - cargo test --manifest-path rand-derive/Cargo.toml
 
 env:
diff --git a/appveyor.yml b/appveyor.yml
index 02e217fe48..e5800fa7a0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -35,4 +35,5 @@ test_script:
   - cargo test --benches
   - cargo test
   - cargo test --features nightly
+  - cargo test --tests --no-default-features --features=alloc
   - cargo test --manifest-path rand-derive/Cargo.toml