diff --git a/hledger/Hledger/Cli/Commands/Checkdates.hs b/hledger/Hledger/Cli/Commands/Checkdates.hs
index 50a785f27..db4d27a83 100755
--- a/hledger/Hledger/Cli/Commands/Checkdates.hs
+++ b/hledger/Hledger/Cli/Commands/Checkdates.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE NoOverloadedStrings #-} -- prevent trouble if turned on in ghci
 
 module Hledger.Cli.Commands.Checkdates (
   checkdatesmode
diff --git a/hledger/Hledger/Cli/Utils.hs b/hledger/Hledger/Cli/Utils.hs
index bc5bfb365..221ef99d1 100644
--- a/hledger/Hledger/Cli/Utils.hs
+++ b/hledger/Hledger/Cli/Utils.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE NoOverloadedStrings #-} -- prevent trouble if turned on in ghci
 {-|
 
 Utilities for top-level modules and ghci. See also Hledger.Read and