revised HLength

[hs-rrdtool.git] / Database / RRDtool / Create.hs

diff --git a/Database/RRDtool/Create.hs b/Database/RRDtool/Create.hs
index cb41c211aa7912d01c6ff04e1a6703c5ca9ad2c1..a3b51e54171d74e14d1ad822ece4fd8281a0c870 100644 (file)
--- a/Database/RRDtool/Create.hs
+++ b/Database/RRDtool/Create.hs
@@ -11,7 +11,7 @@ module Database.RRDtool.Create
 
     -- Database.RRDtool.Expression
     , Constant(..)
-    , IsVarName(..)
+    , IsVarName
     , Variable(..)
     , CommonUnaryOp(..)
     , CommonBinaryOp(..)