diff --git a/matebeamter.cabal b/matebeamter.cabal
index 2423f21..3bab984 100644
--- a/matebeamter.cabal
+++ b/matebeamter.cabal
@@ -21,5 +21,6 @@ executable matebeamter
   -- other-modules:
   -- other-extensions:
   build-depends:       base ^>=4.12.0.0
+                       mateamt
   hs-source-dirs:      src
   default-language:    Haskell2010