1 files changed, 1 insertions, 1 deletions
diff --git a/pfm.cabal b/pfm.cabal
index c36436f..63b292c 100644
--- a/pfm.cabal
+++ b/pfm.cabal
@@ -26,7 +26,7 @@ source-repository head
 library
   hs-source-dirs: src
   default-language: Haskell2010
-  ghc-options: -Wall
+  ghc-options: -Wall -Werror
   exposed-modules: PFM
                  , PFM.Vec
   build-depends: attoparsec