diff --git a/.travis.yml b/.travis.yml
index fcec2d5cd..1c379d58d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,8 @@ before_cache:
 
   - rm -rfv $HOME/.cabal/packages/head.hackage
 
+  - rm -rfv $TRAVIS_BUILD_DIR/dist-newstyle/build/*/{!(ghc-8.6.5)}
+
 matrix:
   include:
     - compiler: "ghc-8.6.5"