diff --git a/examples/HDBC/Oracle/hrr-example-HDBC-Oracle.cabal b/examples/HDBC/Oracle/hrr-example-HDBC-Oracle.cabal
index 06744376..9da72aab 100644
--- a/examples/HDBC/Oracle/hrr-example-HDBC-Oracle.cabal
+++ b/examples/HDBC/Oracle/hrr-example-HDBC-Oracle.cabal
@@ -21,3 +21,4 @@ executable hrr-oracle-example
                      , template-haskell
   hs-source-dirs: src
   default-language:    Haskell2010
+  ghc-options:       -Wall