diff --git a/pkgs/applications/misc/finalterm/default.nix b/pkgs/applications/misc/finalterm/default.nix
index 9d2f8f4a768f..1d8412a25f36 100644
--- a/pkgs/applications/misc/finalterm/default.nix
+++ b/pkgs/applications/misc/finalterm/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
     wrapProgram "$out/bin/finalterm" \
       --prefix GI_TYPELIB_PATH : "$GI_TYPELIB_PATH" \
       --prefix GIO_EXTRA_MODULES : "${gnome3.dconf}/lib/gio/modules" \
-      --prefix XDG_DATA_DIRS : "${gnome3.defaultIconTheme}/share:${gnome3.gtk}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
+      --prefix XDG_DATA_DIRS : "${gnome3.defaultIconTheme}/share:${gnome3.gtk.out}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
   '';
 
   meta = with lib; {
diff --git a/pkgs/applications/networking/newsreaders/liferea/default.nix b/pkgs/applications/networking/newsreaders/liferea/default.nix
index 081525475550..ae60ae113096 100644
--- a/pkgs/applications/networking/newsreaders/liferea/default.nix
+++ b/pkgs/applications/networking/newsreaders/liferea/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
         --prefix PYTHONPATH : "$(toPythonPath $out):$(toPythonPath ${pygobject3})" \
         --prefix GI_TYPELIB_PATH : "$GI_TYPELIB_PATH" \
         --prefix GIO_EXTRA_MODULES : "${gnome3.dconf}/lib/gio/modules:${glib_networking.out}/lib/gio/modules" \
-        --prefix XDG_DATA_DIRS : "$XDG_ICON_DIRS:${gnome3.gtk}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
+        --prefix XDG_DATA_DIRS : "$XDG_ICON_DIRS:${gnome3.gtk.out}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
     done
   '';
 
diff --git a/pkgs/tools/networking/network-manager-applet/default.nix b/pkgs/tools/networking/network-manager-applet/default.nix
index 62a46c15bc84..7f6620af4c95 100644
--- a/pkgs/tools/networking/network-manager-applet/default.nix
+++ b/pkgs/tools/networking/network-manager-applet/default.nix
@@ -35,11 +35,11 @@ stdenv.mkDerivation rec {
   preFixup = ''
     wrapProgram "$out/bin/nm-applet" \
       --prefix GIO_EXTRA_MODULES : "${glib_networking.out}/lib/gio/modules:${gnome3.dconf}/lib/gio/modules" \
-      --prefix XDG_DATA_DIRS : "${gnome3.gtk}/share:$out/share:$GSETTINGS_SCHEMAS_PATH" \
+      --prefix XDG_DATA_DIRS : "${gnome3.gtk.out}/share:$out/share:$GSETTINGS_SCHEMAS_PATH" \
       --set GCONF_CONFIG_SOURCE "xml::~/.gconf" \
       --prefix PATH ":" "${gnome3.gconf}/bin"
     wrapProgram "$out/bin/nm-connection-editor" \
-      --prefix XDG_DATA_DIRS : "${gnome3.gtk}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
+      --prefix XDG_DATA_DIRS : "${gnome3.gtk.out}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
   '';
 
   meta = with stdenv.lib; {