diff --git a/pact-core.cabal b/pact-core.cabal
index 7d6890e32..df6921e9c 100644
--- a/pact-core.cabal
+++ b/pact-core.cabal
@@ -111,6 +111,7 @@ library
     Pact.Core.ChainData
     Pact.Core.Environment
     Pact.Core.StableEncoding
+    Pact.Core.Principal
 
      -- Syntax modules
     Pact.Core.Syntax.ParseTree