diff -ru orig/courier.cabal new/courier.cabal
--- orig/courier.cabal	2014-05-25 12:50:48.058497069 +0300
+++ new/courier.cabal	2014-05-25 12:50:47.000000000 +0300
@@ -64,6 +64,7 @@
                        hslogger,
                        network,
                        stm,
+                       ghc-prim,
                        text,
                        uuid
 
@@ -87,6 +88,7 @@
         directory,
         hslogger,
         stm,
+        ghc-prim,
         -- this project's modules
         courier
 
diff -ru orig/src/Network/Transport/Internal.hs new/src/Network/Transport/Internal.hs
--- orig/src/Network/Transport/Internal.hs	2014-05-25 12:50:48.054497068 +0300
+++ new/src/Network/Transport/Internal.hs	2014-05-25 12:50:47.000000000 +0300
@@ -21,6 +21,7 @@
 -- external imports
 
 import Control.Exception
+import Prelude hiding (catch)
 
 --------------------------------------------------------------------------------
 --------------------------------------------------------------------------------