diff --git a/pkgs/development/libraries/wxwidgets/wxGTK31.nix b/pkgs/development/libraries/wxwidgets/wxGTK31.nix
index 9deb23ffcf0dd..1d94ce7b7ba3b 100644
--- a/pkgs/development/libraries/wxwidgets/wxGTK31.nix
+++ b/pkgs/development/libraries/wxwidgets/wxGTK31.nix
@@ -32,8 +32,6 @@
 , WebKit
 }:
 
-assert withWebKit -> stdenv.isDarwin;
-
 assert withGtk2 -> (!withWebKit);
 
 let