diff --git a/pkgs/development/libraries/wxGTK-2.9/default.nix b/pkgs/development/libraries/wxGTK-2.9/2.9.1.nix
similarity index 100%
rename from pkgs/development/libraries/wxGTK-2.9/default.nix
rename to pkgs/development/libraries/wxGTK-2.9/2.9.1.nix
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ed7a818aafd..9777f7cbfcd 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4686,11 +4686,11 @@ let
     inherit (gtkLibs) gtk;
   };
 
-  wxGTK29 = callPackage ../development/libraries/wxGTK-2.9 {
+  wxGTK290 = callPackage ../development/libraries/wxGTK-2.9/2.9.0.nix {
     inherit (gtkLibs) gtk;
   };
 
-  wxGTK290 = callPackage ../development/libraries/wxGTK-2.9/2.9.0.nix {
+  wxGTK291 = callPackage ../development/libraries/wxGTK-2.9/2.9.1.nix {
     inherit (gtkLibs) gtk;
   };