diff --git a/src/server/gf-server.cabal b/src/server/gf-server.cabal
index f573e3f07..a41502f50 100644
--- a/src/server/gf-server.cabal
+++ b/src/server/gf-server.cabal
@@ -52,6 +52,7 @@ executable morpho-server
     FastCGIUtils
     Cache
     URLEncoding
+    GF.Grammar.Parser
   hs-source-dirs: .. . ../../dist/build/autogen
   if os(windows)
     ghc-options: -optl-mwindows