diff --git a/ats-src/combinatorics.dats b/ats-src/combinatorics.dats
--- a/ats-src/combinatorics.dats
+++ b/ats-src/combinatorics.dats
diff --git a/cbits/number-theory.c b/cbits/number-theory.c
--- a/cbits/number-theory.c
+++ b/cbits/number-theory.c
@@ -1,7 +1,7 @@
 /*
 **
 ** The C code is generated by [ATS/Postiats-0-3-8]
-** The starting compilation time is: 2018-1-4:  9h: 8m
+** The starting compilation time is: 2018-1-4: 15h:31m
 **
 */
 
diff --git a/fast-arithmetic.cabal b/fast-arithmetic.cabal
--- a/fast-arithmetic.cabal
+++ b/fast-arithmetic.cabal
@@ -1,5 +1,5 @@
 name:                fast-arithmetic
-version:             0.1.0.6
+version:             0.1.0.7
 synopsis:            Fast number-theoretic functions.
 description:         Fast number-theoretic code with a high level of safety guaranteed by ATS.
 homepage:            https://github.com/vmchale/fast-arithmetic#readme
@@ -8,7 +8,7 @@
 author:              Vanessa McHale
 maintainer:          vamchale@gmail.com
 copyright:           Copyright: (c) 2017 Vanessa McHale
-category:            Numerics
+category:            Numerics, Math, Algorithms, Number Theory
 build-type:          Custom
 extra-source-files:  ats-deps/prelude/ATS2-Postiats-include-0.3.8/ccomp/runtime/pats_ccomp_config.h
                    , ats-src/*.dats
@@ -19,7 +19,7 @@
 cabal-version:       >= 1.18
 
 Flag development {
-  Description: Enable `-Werror`
+  Description: Enable `-Werror` and don't clean ATS libraries between builds.
   manual: True
   default: False
 }
diff --git a/src/Numeric/NumberTheory.hs b/src/Numeric/NumberTheory.hs
--- a/src/Numeric/NumberTheory.hs
+++ b/src/Numeric/NumberTheory.hs
@@ -33,7 +33,7 @@
 littleOmega :: Int -> Int
 littleOmega = conjugate little_omega_ats
 
--- | Number of distinct prime divisors.
+-- | Number of distinct divisors.
 tau :: Int -> Int
 tau = conjugate count_divisors_ats