diff --git a/Lambdaya.cabal b/Lambdaya.cabal
--- a/Lambdaya.cabal
+++ b/Lambdaya.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.1.0.0
+version:             0.1.1.0
 
 -- A short (one-line) description of the package.
 synopsis: Library for RedPitaya         
diff --git a/src/System/RedPitaya/Fpga.hs b/src/System/RedPitaya/Fpga.hs
--- a/src/System/RedPitaya/Fpga.hs
+++ b/src/System/RedPitaya/Fpga.hs
@@ -6,7 +6,7 @@
 module System.RedPitaya.Fpga (
     Fpga,
     Registry,
-    Channel,
+    Channel(..),
     withOpenFpga,
     -- * Housekeeping
     -- | various housekeeping and Gpio functions