diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@
 ## Unreleased changes
 
 
+## 0.1.0.3
+
+-   Fix tests and docs.
+
+
 ## 0.1.0.2
 
 -   `scale`, `rescaleWith` functions.
diff --git a/covariance.cabal b/covariance.cabal
--- a/covariance.cabal
+++ b/covariance.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               covariance
-version:            0.1.0.2
+version:            0.1.0.3
 synopsis:
     Well-conditioned estimation of large-dimensional covariance matrices
 
diff --git a/src/Statistics/Covariance.hs b/src/Statistics/Covariance.hs
--- a/src/Statistics/Covariance.hs
+++ b/src/Statistics/Covariance.hs
@@ -21,6 +21,9 @@
     module Statistics.Covariance.RaoBlackwellLedoitWolf,
     module Statistics.Covariance.OracleApproximatingShrinkage,
 
+    -- * Misc
+    DoCenter (..),
+
     -- * Helper functions
     scale,
     rescaleWith,
@@ -33,6 +36,7 @@
 import Statistics.Covariance.LedoitWolf
 import Statistics.Covariance.OracleApproximatingShrinkage
 import Statistics.Covariance.RaoBlackwellLedoitWolf
+import Statistics.Covariance.Types
 import qualified Statistics.Sample as S
 
 -- | Empirical or sample covariance.
diff --git a/test/Test.hs b/test/Test.hs
--- a/test/Test.hs
+++ b/test/Test.hs
@@ -44,7 +44,7 @@
 
 estimators :: [Estimator]
 estimators =
-  [ (ledoitWolf, "ledoitWolf"),
+  [ (ledoitWolf DoCenter, "ledoitWolf"),
     (raoBlackwellLedoitWolf, "raoBlackwellLedoitWolf"),
     (oracleApproximatingShrinkage, "oracleApproximatingShrinkage")
   ]