diff --git a/README.md b/README.md
index acf80ee..cc4c61e 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ every one nowadays.
 
 ## Installation
 
-bisc is Haskell program available on [Hackage][hackage] and can
+bisc is a Haskell program available on [Hackage][hackage] and can
 be installed with one of the Haskell package managers. For
 example, with [cabal-install][cabal] you would do
 ```