diff --git a/dhall/common.dhall b/dhall/common.dhall
index 493664d..b0dd789 100644
--- a/dhall/common.dhall
+++ b/dhall/common.dhall
@@ -132,21 +132,21 @@ let addDay =
       \(d : Natural) ->
         { gYear = x.gmYear, gMonth = x.gmMonth, gDay = d }
 
-let mvP = nullVal // { mvSign = Some True }
+let mvP = nullVal // { vmSign = Some True }
 
-let mvN = nullVal // { mvSign = Some False }
+let mvN = nullVal // { vmSign = Some False }
 
-let mvNum = \(x : Natural) -> nullVal // { mvNum = Some x }
+let mvNum = \(x : Natural) -> nullVal // { vmNum = Some x }
 
-let mvDen = \(x : Natural) -> nullVal // { mvDen = Some x }
+let mvDen = \(x : Natural) -> nullVal // { vmDen = Some x }
 
-let mvNumP = \(x : Natural) -> mvP // { mvNum = Some x }
+let mvNumP = \(x : Natural) -> mvP // { vmNum = Some x }
 
-let mvNumN = \(x : Natural) -> mvN // { mvNum = Some x }
+let mvNumN = \(x : Natural) -> mvN // { vmNum = Some x }
 
-let mvDenP = \(x : Natural) -> mvP // { mvDen = Some x }
+let mvDenP = \(x : Natural) -> mvP // { vmDen = Some x }
 
-let mvDenN = \(x : Natural) -> mvN // { mvDen = Some x }
+let mvDenN = \(x : Natural) -> mvN // { vmDen = Some x }
 
 in      { nullSplit
         , nullMatch