diff --git a/maxent.cabal b/maxent.cabal
--- a/maxent.cabal
+++ b/maxent.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.6.0.3
+version:             0.6.0.4
 
 -- A short (one-line) description of the package.
 synopsis:            Compute Maximum Entropy Distributions
diff --git a/src/Numeric/MaxEnt.hs b/src/Numeric/MaxEnt.hs
--- a/src/Numeric/MaxEnt.hs
+++ b/src/Numeric/MaxEnt.hs
@@ -43,9 +43,7 @@
     general, 
     -- ** Linear
     LinearConstraints(..),
-    linear,
-    linear',
-    linear''
+    linear
 ) where
 import Numeric.MaxEnt.Internal (Constraint,
                         (.=.),
@@ -57,8 +55,6 @@
                         maxent,
                         general,
                         linear,
-                        linear',
-                        linear'',
                         LinearConstraints(..))