diff --git a/changelog.markdown b/changelog.markdown
--- a/changelog.markdown
+++ b/changelog.markdown
@@ -61,3 +61,7 @@
 
 ## 0.0.1.10
 Updated list of test-compilers.
+
+## 0.0.1.11
+Replaced module **Distribution.Verbosity** with **FishFood.Data.Verbosity**.
+
diff --git a/debian/DEBIAN/control b/debian/DEBIAN/control
--- a/debian/DEBIAN/control
+++ b/debian/DEBIAN/control
@@ -1,5 +1,5 @@
 Package:	fishfood
-Version:	0.0.1.10-1
+Version:	0.0.1.11-1
 Section:	utils
 Priority:	optional
 Architecture:	amd64
diff --git a/fishfood.cabal b/fishfood.cabal
--- a/fishfood.cabal
+++ b/fishfood.cabal
@@ -14,7 +14,7 @@
 -- along with FishFood.  If not, see <http://www.gnu.org/licenses/>.
 
 Name:		fishfood
-Version:	0.0.1.10
+Version:	0.0.1.11
 Cabal-version:	>= 1.10
 Copyright:	(C) 2013-2015 Dr. Alistair Ward
 License:	GPL
diff --git a/fishfood.spec b/fishfood.spec
--- a/fishfood.spec
+++ b/fishfood.spec
@@ -21,7 +21,7 @@
 
 Summary:	Calculates file-size frequency-distribution.
 Name:		fishfood
-Version:	0.0.1.10
+Version:	0.0.1.11
 Release:	1
 License:	GPLv3
 # From '/usr/share/doc/packages/rpm/GROUPS'.
diff --git a/src-lib/FishFood/Data/CommandOptions.hs b/src-lib/FishFood/Data/CommandOptions.hs
--- a/src-lib/FishFood/Data/CommandOptions.hs
+++ b/src-lib/FishFood/Data/CommandOptions.hs
@@ -48,8 +48,8 @@
 
 import qualified	Data.Default
 import qualified	Data.Maybe
-import qualified	Distribution.Verbosity
 import qualified	FishFood.Data.File	as Data.File
+import qualified	FishFood.Data.Verbosity	as Data.Verbosity
 import qualified	ToolShed.SelfValidate
 
 -- | Either an arithmetic size-increase for which there's a default, or a geometric size-ratio.
@@ -57,10 +57,10 @@
 
 -- | Declares a record to contain command-line options.
 data CommandOptions ratio	= MkCommandOptions {
-	getBinSizeDelta				:: BinSizeDelta ratio,			-- ^ Either the arithmetic size-increase (defaulting to one standard-deviation), or the geometric size-ratio, of the sequence of bins into which files are categorized.
-	getDeriveProbabilityMassFunction	:: Bool,				-- ^ Whether to derive the "Probability mass function" rather than the "Frequency-distribution".
-	getNDecimalDigits			:: Int,					-- ^ The precision to which fractional data is displayed.
-	getVerbosity				:: Distribution.Verbosity.Verbosity	-- ^ The threshold for ancillary information-output.
+	getBinSizeDelta				:: BinSizeDelta ratio,		-- ^ Either the arithmetic size-increase (defaulting to one standard-deviation), or the geometric size-ratio, of the sequence of bins into which files are categorized.
+	getDeriveProbabilityMassFunction	:: Bool,			-- ^ Whether to derive the "Probability mass function" rather than the "Frequency-distribution".
+	getNDecimalDigits			:: Int,				-- ^ The precision to which fractional data is displayed.
+	getVerbosity				:: Data.Verbosity.Verbosity	-- ^ The threshold for ancillary information-output.
 } deriving Show
 
 instance Data.Default.Default (CommandOptions ratio)	where
@@ -68,7 +68,7 @@
 		getBinSizeDelta				= Left Nothing,	-- Interpreted as one standard-deviation.
 		getDeriveProbabilityMassFunction	= False,
 		getNDecimalDigits			= 3,
-		getVerbosity				= Distribution.Verbosity.normal
+		getVerbosity				= Data.Default.def
 	}
 
 instance (Num ratio, Ord ratio, Show ratio) => ToolShed.SelfValidate.SelfValidator (CommandOptions ratio)	where
@@ -97,7 +97,7 @@
 	 ]
 
 -- | Smart constructor.
-mkCommandOptions :: (Num ratio, Ord ratio, Show ratio) => BinSizeDelta ratio -> Bool -> Int -> Distribution.Verbosity.Verbosity -> CommandOptions ratio
+mkCommandOptions :: (Num ratio, Ord ratio, Show ratio) => BinSizeDelta ratio -> Bool -> Int -> Data.Verbosity.Verbosity -> CommandOptions ratio
 mkCommandOptions binSizeDelta deriveProbabilityMassFunction nDecimalDigits verbosity
 	| ToolShed.SelfValidate.isValid commandOptions	= commandOptions
 	| otherwise					= error $ "FishFood.Data.CommandOptions.mkCommandOptions:\t" ++ ToolShed.SelfValidate.getFirstError commandOptions
diff --git a/src-lib/FishFood/Data/Verbosity.hs b/src-lib/FishFood/Data/Verbosity.hs
--- a/src-lib/FishFood/Data/Verbosity.hs
+++ b/src-lib/FishFood/Data/Verbosity.hs
@@ -18,20 +18,36 @@
 {- |
  [@AUTHOR@]	Dr. Alistair Ward
 
- [@DESCRIPTION@]	Instance-definitions for 'Distribution.Verbosity.Verbosity'.
+ [@DESCRIPTION@]
+	The levels of program-output.
+	N.B.: the data-type is coincidentally similar to 'Distribution.Verbosity.Internal.VerbosityLevel'.
 -}
 
 module FishFood.Data.Verbosity(
+-- * Types
+-- ** Data-types
+	Verbosity(),
 -- * Constants
 	range
 ) where
 
 import qualified	Data.Default
-import qualified	Distribution.Verbosity
 
-instance Data.Default.Default Distribution.Verbosity.Verbosity	where
-	def	= Distribution.Verbosity.normal
+-- | Define the levels of program-output.
+data Verbosity
+	= Silent
+	| Normal
+	| Verbose
+	| Deafening
+	deriving (Enum, Eq, Ord, Read, Show)
 
+instance Data.Default.Default Verbosity	where
+	def	= Normal
+
+instance Bounded Verbosity where
+	minBound	= Silent
+	maxBound	= Deafening
+
 -- | The constant complete range of values.
-range :: [Distribution.Verbosity.Verbosity]
+range :: [Verbosity]
 range	= [minBound .. maxBound]
diff --git a/src-test/FishFood/Test/QuickCheck/Data/Verbosity.hs b/src-test/FishFood/Test/QuickCheck/Data/Verbosity.hs
--- a/src-test/FishFood/Test/QuickCheck/Data/Verbosity.hs
+++ b/src-test/FishFood/Test/QuickCheck/Data/Verbosity.hs
@@ -18,14 +18,13 @@
 {- |
  [@AUTHOR@]	Dr. Alistair Ward
 
- [@DESCRIPTION@]	Implements 'Test.QuickCheck.Arbitrary' for 'Distribution.Verbosity.Verbosity'.
+ [@DESCRIPTION@]	Implements 'Test.QuickCheck.Arbitrary'.
 -}
 
 module FishFood.Test.QuickCheck.Data.Verbosity() where
 
-import qualified	Distribution.Verbosity
 import qualified	FishFood.Data.Verbosity	as Data.Verbosity
 import qualified	Test.QuickCheck
 
-instance Test.QuickCheck.Arbitrary Distribution.Verbosity.Verbosity	where
+instance Test.QuickCheck.Arbitrary Data.Verbosity.Verbosity	where
 	arbitrary	= Test.QuickCheck.elements Data.Verbosity.range