diff --git a/pkgs/development/libraries/wxGTK-2.8/default.nix b/pkgs/development/libraries/wxGTK-2.8/default.nix
index 55964269e4c..8f87aa89b96 100644
--- a/pkgs/development/libraries/wxGTK-2.8/default.nix
+++ b/pkgs/development/libraries/wxGTK-2.8/default.nix
@@ -46,4 +46,6 @@ stdenv.mkDerivation {
   ";
 
   passthru = {inherit gtk compat24 compat26 unicode;};
+
+  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/libraries/wxGTK-2.9/2.9.0.nix b/pkgs/development/libraries/wxGTK-2.9/2.9.0.nix
index 0520adef4dc..ca1d8212cac 100644
--- a/pkgs/development/libraries/wxGTK-2.9/2.9.0.nix
+++ b/pkgs/development/libraries/wxGTK-2.9/2.9.0.nix
@@ -36,4 +36,6 @@ stdenv.mkDerivation {
   ";
 
   passthru = {inherit gtk compat24 compat26 unicode;};
+
+  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/libraries/wxGTK-2.9/2.9.1.nix b/pkgs/development/libraries/wxGTK-2.9/2.9.1.nix
index 2f83d3cc03f..7fa571704c3 100644
--- a/pkgs/development/libraries/wxGTK-2.9/2.9.1.nix
+++ b/pkgs/development/libraries/wxGTK-2.9/2.9.1.nix
@@ -36,4 +36,6 @@ stdenv.mkDerivation {
   ";
 
   passthru = {inherit gtk compat24 compat26 unicode;};
+
+  enableParallelBuilding = true;
 }