diff --git a/hledger-lib/Hledger/Data/Dates.hs b/hledger-lib/Hledger/Data/Dates.hs
index c6ce3c0ad..44d01bdfc 100644
--- a/hledger-lib/Hledger/Data/Dates.hs
+++ b/hledger-lib/Hledger/Data/Dates.hs
@@ -74,7 +74,7 @@ import Data.Maybe
 import Data.Time.Format hiding (months)
 #else
 import Data.Time.Format
-import System.Locale (defaultTimeLocale)
+import System.Locale (TimeLocale, defaultTimeLocale)
 #endif
 import Data.Time.Calendar
 import Data.Time.Calendar.OrdinalDate