diff --git a/.travis.yml b/.travis.yml
index cc60069..86e6d84 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ script:
  - outs=$(nix-build non-broken.nix) && echo Produced $outs
  - nix eval -f default.nix 'lib'
  - nix eval -f default.nix 'modules'
- - nix eval -f default.nix 'lib'
+ - nix eval -f default.nix 'overlays'
 
 after_success:
   - if [ -n "${CACHIX_CACHE}" ]; then cachix push "${CACHIX_CACHE}" $outs; fi