diff --git a/psb.cabal b/psb.cabal
index b71aada..8e3db23 100644
--- a/psb.cabal
+++ b/psb.cabal
@@ -31,7 +31,7 @@ executable psb
 
     other-modules: Config Utilities Templates Types IR Markdown Restruct HTML
 
-    default-extensions: ApplicativeDo DataKinds NamedFieldPuns DerivingVia LambdaCase TypeApplications DeriveGeneric
+    default-extensions: ApplicativeDo DataKinds NamedFieldPuns DerivingVia LambdaCase TypeApplications DeriveGeneric OverloadedRecordDot NamedFieldPuns DuplicateRecordFields DisambiguateRecordFields
 
     -- Other library packages from which modules are imported.
     -- https://hackage.haskell.org/package/texmath