diff --git a/webkitgtk3-javascriptcore.cabal b/webkitgtk3-javascriptcore.cabal
--- a/webkitgtk3-javascriptcore.cabal
+++ b/webkitgtk3-javascriptcore.cabal
@@ -1,5 +1,5 @@
 Name:		webkitgtk3-javascriptcore
-Version:	0.14.2.0
+Version:	0.14.2.1
 Synopsis:       JavaScriptCore FFI from webkitgtk
 Description: 	FFI for JavaScriptCore module from webkitgtk
 License: 	BSD3
@@ -50,6 +50,6 @@
         x-Signals-Import: Graphics.UI.GtkInternals
 		
         include-dirs: .
-        cpp-options: -DDISABLE_DEPRECATED -U__BLOCKS__ -D__attribute__(A)=
+        cpp-options: -DDISABLE_DEPRECATED -U__BLOCKS__ -D__attribute__(A)= -D_Nullable= -D_Nonnull=
         x-c2hs-Header:  hsjscore.h
         pkgconfig-depends: webkitgtk-3.0 >=1.1.15