diff --git a/hledger-lib/Hledger/Read/CsvReader.hs b/hledger-lib/Hledger/Read/CsvReader.hs
index e221be515..29525c162 100644
--- a/hledger-lib/Hledger/Read/CsvReader.hs
+++ b/hledger-lib/Hledger/Read/CsvReader.hs
@@ -823,7 +823,7 @@ transactionFromCsvRecord sourcepos rules record = t
                       then account
                       else case isNegativeMixedAmount (pamount p) of
                              Just True -> "income:unknown"
-                             Just False -> "expense:unknown"
+                             Just False -> "expenses:unknown"
                              _ -> "unknown"
               ]}
     -- build the transaction