diff --git a/pkgs/applications/audio/mopidy/mopidy.nix b/pkgs/applications/audio/mopidy/mopidy.nix
index eb5672fe135b..f2f3734ec2ee 100644
--- a/pkgs/applications/audio/mopidy/mopidy.nix
+++ b/pkgs/applications/audio/mopidy/mopidy.nix
@@ -38,10 +38,6 @@ pythonPackages.buildPythonApplication rec {
   # There are no tests
   doCheck = false;
 
-  preFixup = ''
-    gappsWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH : "$GST_PLUGIN_SYSTEM_PATH")
-  '';
-
   meta = with stdenv.lib; {
     homepage = "https://www.mopidy.com/";
     description = ''
diff --git a/pkgs/applications/office/libreoffice/default.nix b/pkgs/applications/office/libreoffice/default.nix
index a8c0d4117a33..6d8983179dc4 100644
--- a/pkgs/applications/office/libreoffice/default.nix
+++ b/pkgs/applications/office/libreoffice/default.nix
@@ -300,8 +300,6 @@ in (mkDrv rec {
     cp -r sysui/desktop/icons  "$out/share"
     sed -re 's@Icon=libreoffice(dev)?[0-9.]*-?@Icon=@' -i "$out/share/applications/"*.desktop
 
-    qtWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH : "$GST_PLUGIN_SYSTEM_PATH")
-
     mkdir -p $dev
     cp -r include $dev
   '' + lib.optionalString kdeIntegration ''
diff --git a/pkgs/development/libraries/gstreamer/core/default.nix b/pkgs/development/libraries/gstreamer/core/default.nix
index 3ea0bd8903af..9c644986eab5 100644
--- a/pkgs/development/libraries/gstreamer/core/default.nix
+++ b/pkgs/development/libraries/gstreamer/core/default.nix
@@ -94,7 +94,7 @@ stdenv.mkDerivation rec {
   postInstall = ''
     for prog in "$dev/bin/"*; do
         # We can't use --suffix here due to quoting so we craft the export command by hand
-        wrapProgram "$prog" --run 'export GST_PLUGIN_SYSTEM_PATH=$GST_PLUGIN_SYSTEM_PATH''${GST_PLUGIN_SYSTEM_PATH:+:}$(unset _tmp; for profile in $NIX_PROFILES; do _tmp="$profile/lib/gstreamer-1.0''${_tmp:+:}$_tmp"; done; printf '%s' "$_tmp")'
+        wrapProgram "$prog" --run 'export GST_PLUGIN_SYSTEM_PATH_1_0=$GST_PLUGIN_SYSTEM_PATH_1_0''${GST_PLUGIN_SYSTEM_PATH_1_0:+:}$(unset _tmp; for profile in $NIX_PROFILES; do _tmp="$profile/lib/gstreamer-1.0''${_tmp:+:}$_tmp"; done; printf '%s' "$_tmp")'
     done
   '';
 
diff --git a/pkgs/tools/cd-dvd/brasero/default.nix b/pkgs/tools/cd-dvd/brasero/default.nix
index cdc198873337..c9c71a99deb8 100644
--- a/pkgs/tools/cd-dvd/brasero/default.nix
+++ b/pkgs/tools/cd-dvd/brasero/default.nix
@@ -36,7 +36,7 @@ in stdenv.mkDerivation rec {
   ];
 
   preFixup = ''
-    gappsWrapperArgs+=(--prefix PATH : "${binpath}" --prefix GST_PLUGIN_SYSTEM_PATH : "$GST_PLUGIN_SYSTEM_PATH")
+    gappsWrapperArgs+=(--prefix PATH : "${binpath}")
   '';
 
   meta = with stdenv.lib; {