diff --git a/pkgs/applications/kde-apps-14.12/default.nix b/pkgs/applications/kde-apps-14.12/default.nix
index b34418401a0..00f84896a0b 100644
--- a/pkgs/applications/kde-apps-14.12/default.nix
+++ b/pkgs/applications/kde-apps-14.12/default.nix
@@ -241,6 +241,7 @@ let
           "-DDOCBOOKXSL_DIR=${docbook_xsl}/xml/xsl/docbook"
           "-DHUPNP_ENABLED=ON"
           "-DWITH_SOLID_UDISKS2=ON"
+          "-DKDE_DEFAULT_HOME=.kde"
         ];
       };
 
diff --git a/pkgs/development/libraries/kde-frameworks-5.7/default.nix b/pkgs/development/libraries/kde-frameworks-5.7/default.nix
index 793f1e9111d..b2d59246bc2 100644
--- a/pkgs/development/libraries/kde-frameworks-5.7/default.nix
+++ b/pkgs/development/libraries/kde-frameworks-5.7/default.nix
@@ -27,10 +27,7 @@ let
         enableParallelBuilding = drv.enableParallelBuilding or true;
         cmakeFlags =
           (drv.cmakeFlags or [])
-          ++ [ "-DBUILD_TESTING=OFF"
-            "-DKDE_DEFAULT_HOME=.kde5"
-            "-DKDE4_DEFAULT_HOME=.kde"
-          ]
+          ++ [ "-DBUILD_TESTING=OFF" ]
           ++ optional debug "-DCMAKE_BUILD_TYPE=Debug";
 
         meta =