diff --git a/.travis.yml b/.travis.yml
index 67f85d4..15fd644 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -56,7 +56,7 @@ before_install:
   - export PATH=$HOME/.local/bin:$PATH
   - travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
   - export PATH=/opt/ghc/$GHCVER/bin:$PATH
-  - export RUNSTACK="stack --no-terminal --skip-ghc-check --resolver=$RESOLVER"
+  - export RUNSTACK="stack --no-terminal --skip-ghc-check --system-ghc --resolver=$RESOLVER"
 
 install:
   - $RUNSTACK --version