diff --git a/Pathfinder.cabal b/Pathfinder.cabal
--- a/Pathfinder.cabal
+++ b/Pathfinder.cabal
@@ -1,5 +1,5 @@
 Name:                 Pathfinder
-Version:              0.4.1
+Version:              0.4.2
 Synopsis:             Relational optimiser and code generator
 Description:
   The library provides FFI bindings to the Pathfinder relational optimiser and
@@ -8,6 +8,10 @@
   * optimisation of table algebra (a variant of relational algebra) expressions
   .
   * and compilation of table algebra expressions into SQL:1999 queries
+  .
+  Note that the C source bundle of Pathfinder is also included in this
+  package. The C sources are automatically built along with the Haskell FFI
+  bindings. There is no need to download and install Pathfinder separately.
   .
   More information about Pathfinder is available from the following web page:
   .