diff --git a/Hledger/Interest.hs b/Hledger/Interest.hs
--- a/Hledger/Interest.hs
+++ b/Hledger/Interest.hs
@@ -45,7 +45,7 @@
 
 processTransaction :: Transaction -> Computer ()
 processTransaction ts = do
-  let day = fromMaybe (tdate ts) (teffectivedate ts)
+  let day = fromMaybe (tdate ts) (tdate2 ts)
   computeInterest day
   interestAcc <- asks interestAccount
   let posts = [ p | p <- tpostings ts, interestAcc == paccount p ]
@@ -82,7 +82,7 @@
   perDayScalar <- daysInYear day
   let t = Transaction
           { tdate          = day
-          , teffectivedate = Nothing
+          , tdate2         = Nothing
           , tstatus        = False
           , tcode          = ""
           , tdescription   = showPercent ratePerAnno ++ "% interest for " ++ showMixedAmount bal ++ " over " ++ show days ++ " days"
@@ -92,7 +92,9 @@
           , ttags          = []
           }
       pTarget = Posting
-          { pstatus        = False
+          { pdate          = Nothing
+          , pdate2         = Nothing
+          , pstatus        = False
           , paccount       = targetAcc
           , pamount        = Mixed [ a { aquantity = (aquantity a * ratePerAnno) / fromInteger perDayScalar * fromInteger days } | a <- amounts bal ]
           , pcomment       = ""
@@ -101,7 +103,9 @@
           , ptags          = []
           }
       pSource = Posting
-          { pstatus        = False
+          { pdate          = Nothing
+          , pdate2         = Nothing
+          , pstatus        = False
           , paccount       = srcAcc
           , pamount        = negate (pamount pTarget)
           , pcomment       = ""
diff --git a/hledger-interest.cabal b/hledger-interest.cabal
--- a/hledger-interest.cabal
+++ b/hledger-interest.cabal
@@ -1,5 +1,5 @@
 Name:                   hledger-interest
-Version:                1.4.2
+Version:                1.4.3
 Synopsis:               computes interest for a given account
 License:                BSD3
 License-file:           LICENSE
@@ -9,7 +9,7 @@
 Category:               Finance
 Build-type:             Simple
 Cabal-version:          >= 1.6
-Tested-with:            GHC >= 7.0.4 && <= 7.6.1
+Tested-with:            GHC >= 7.0.4 && <= 7.6.3
 Data-files:             README.md
 Description:
  hledger-interest is a small command-line utility based on Simon
@@ -18,8 +18,8 @@
  configured to use various schemes for day-counting, such as act\/act,
  30\/360, 30E\/360, and 30\/360isda. Furthermore, it supports a (small)
  number of interest schemes, i.e. annual interest with a fixed rate and
- the scheme mandated by the German BGB288 (Basiszins für
- Verbrauchergeschäfte). Extending support for other schemes is fairly
+ the scheme mandated by the German BGB288 (Basiszins fuer
+ Verbrauchergeschaefte). Extending support for other schemes is fairly
  easy, but currently requires changes to the source code.
  .
  As an example, consider the following loan, stored in a file called
@@ -112,7 +112,7 @@
 
 Executable hledger-interest
   Main-is:              Main.hs
-  Build-depends:        base >= 3 && < 5, hledger-lib >= 0.19.3, time, mtl, Cabal
+  Build-depends:        base >= 3 && < 5, hledger-lib >= 0.20, time, mtl, Cabal
   other-modules:        Hledger.Interest
                         Hledger.Interest.DayCountConvention
                         Hledger.Interest.Rate