diff --git a/CONTRIBUTING b/CONTRIBUTING
--- a/CONTRIBUTING
+++ b/CONTRIBUTING
@@ -51,7 +51,7 @@
 8. if you compiled venzone for a new system and want to send me a release
    of it just type:
 
-    cabal new-run packerino
+    cabal new-run -f crea-release packerino
 
    and a .zip will be automatically created.
 
diff --git a/venzone.cabal b/venzone.cabal
--- a/venzone.cabal
+++ b/venzone.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                venzone
-version:             1.0.0.0
+version:             1.0.0.1
 synopsis:            ASCII platform-adventure game
 description:         Steal the Earthquake Hammer from the Orcolat
                      and save your valley. Binaries and more info in the
@@ -25,6 +25,10 @@
     type:     darcs
     location: https://hub.darcs.net/ffaf/venzone
 
+flag crea-release
+  description:       Build release script
+  default:           False
+
 executable venzone
   main-is:             Main.hs
   autogen-modules:     Paths_venzone
@@ -124,12 +128,15 @@
 
 executable packerino
   main-is:             Packerino.hs
-  build-depends:       base == 4.*,
+  if flag(crea-release)
+    build-depends:     base == 4.*,
                        directory            >= 1.3 && < 1.4,
                        filemanip            >= 0.3 && < 0.4,
                        filepath             >= 1.4 && < 1.5,
                        process              >= 1.6 && < 1.7,
                        temporary            >= 1.3 && < 1.4
+  else
+    buildable:         False
   default-language:    Haskell2010
   ghc-options:         -threaded
                        -Wall