diff --git a/HMarkov.cabal b/HMarkov.cabal
--- a/HMarkov.cabal
+++ b/HMarkov.cabal
@@ -1,5 +1,5 @@
 name:                HMarkov
-version:             1.0.1.0
+version:             1.0.1.1
 synopsis:            Markov-generated sequences
 description:         Sequences generated by trained Markov models
 homepage:            https://github.com/swizzard/HMarkov#readme
diff --git a/src/Data/Markov/HMarkov.hs b/src/Data/Markov/HMarkov.hs
--- a/src/Data/Markov/HMarkov.hs
+++ b/src/Data/Markov/HMarkov.hs
@@ -25,6 +25,7 @@
   -- * Construction helpers
   , buildMap
   , buildProc
+  , buildProcIO
   -- * Run processes
   , runMarkov
   , runUntil