diff --git a/.travis.yml b/.travis.yml
index f678cf6..465299e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -34,7 +34,7 @@ before_install:
 install:
 # Build dependencies. Start with just haskell-src-exts since it requires a lot
 # of memory and we want it to build by itself.
-- stack --no-terminal --install-ghc haskell-src-exts
+- stack --no-terminal --install-ghc build haskell-src-exts
 - stack --no-terminal --install-ghc test --only-dependencies
 
 script: