diff --git a/nixos/modules/services/web-apps/mediagoblin.nix b/nixos/modules/services/web-apps/mediagoblin.nix
index a6f2e5cdd0a3c..02a8b2b1c11d4 100644
--- a/nixos/modules/services/web-apps/mediagoblin.nix
+++ b/nixos/modules/services/web-apps/mediagoblin.nix
@@ -25,14 +25,13 @@ let
 
   iniFormat = pkgs.formats.ini { };
 
-  # we need to build our own GI_TYPELIB_PATH because celery and paster need this information, too and cannot easily be re-wrapped
-  GI_TYPELIB_PATH =
+  # we need to build our own GI_TYPELIB_PATH and GST_PLUGIN_PATH because celery, paster and gmg need this information and it cannot easily be re-wrapped
+  gst =
     let
       needsGst =
         (cfg.settings.mediagoblin.plugins ? "mediagoblin.media_types.audio")
         || (cfg.settings.mediagoblin.plugins ? "mediagoblin.media_types.video");
     in
-    lib.makeSearchPathOutput "out" "lib/girepository-1.0" (
       with pkgs.gst_all_1;
       [
         pkgs.glib
@@ -40,7 +39,18 @@ let
         gstreamer
       ]
       # audio and video share most dependencies, so we can just take audio
-      ++ lib.optionals needsGst cfg.package.optional-dependencies.audio
+      ++ lib.optionals needsGst cfg.package.optional-dependencies.audio;
+  GI_TYPELIB_PATH = lib.makeSearchPathOutput "out" "lib/girepository-1.0" gst;
+  GST_PLUGIN_PATH = lib.makeSearchPathOutput "lib" "lib/gstreamer-1.0" gst;
+
+  path =
+    lib.optionals (cfg.settings.mediagoblin.plugins ? "mediagoblin.media_types.stl") [ pkgs.blender ]
+    ++ lib.optionals (cfg.settings.mediagoblin.plugins ? "mediagoblin.media_types.pdf") (
+      with pkgs;
+      [
+        poppler_utils
+        unoconv
+      ]
     );
 
   finalPackage = cfg.package.python.buildEnv.override {
@@ -189,7 +199,7 @@ in
         if [[ "$USER" != mediagoblin ]]; then
          sudo='exec /run/wrappers/bin/sudo -u mediagoblin'
         fi
-        $sudo sh -c "cd /var/lib/mediagoblin; env GI_TYPELIB_PATH=${GI_TYPELIB_PATH} ${lib.getExe' finalPackage "gmg"} $@"
+        $sudo sh -c "cd /var/lib/mediagoblin; env GI_TYPELIB_PATH=${GI_TYPELIB_PATH} GST_PLUGIN_PATH=${GST_PLUGIN_PATH} PATH=$PATH:${lib.makeBinPath path} ${lib.getExe' finalPackage "gmg"} $*"
       '')
     ];
 
@@ -247,15 +257,7 @@ in
       let
         serviceDefaults = {
           wantedBy = [ "multi-user.target" ];
-          path =
-            lib.optionals (cfg.settings.mediagoblin.plugins ? "mediagoblin.media_types.stl") [ pkgs.blender ]
-            ++ lib.optionals (cfg.settings.mediagoblin.plugins ? "mediagoblin.media_types.pdf") (
-              with pkgs;
-              [
-                poppler_utils
-                unoconv
-              ]
-            );
+          inherit path;
           serviceConfig = {
             AmbientCapabilities = "";
             CapabilityBoundingSet = [ "" ];
@@ -324,6 +326,7 @@ in
             Environment = [
               "CELERY_CONFIG_MODULE=mediagoblin.init.celery.from_celery"
               "GI_TYPELIB_PATH=${GI_TYPELIB_PATH}"
+              "GST_PLUGIN_PATH=${GST_PLUGIN_PATH}"
               "MEDIAGOBLIN_CONFIG=/var/lib/mediagoblin/mediagoblin.ini"
               "PASTE_CONFIG=${pasteConfig}"
             ];
@@ -349,6 +352,7 @@ in
             Environment = [
               "CELERY_ALWAYS_EAGER=false"
               "GI_TYPELIB_PATH=${GI_TYPELIB_PATH}"
+              "GST_PLUGIN_PATH=${GST_PLUGIN_PATH}"
             ];
             ExecStart = "${lib.getExe' finalPackage "paster"} serve /var/lib/mediagoblin/paste.ini";
           };