diff --git a/plugins/PostProcessingPlugin/PostProcessingPlugin.py b/plugins/PostProcessingPlugin/PostProcessingPlugin.py
index de9b1905b7..f206909f20 100644
--- a/plugins/PostProcessingPlugin/PostProcessingPlugin.py
+++ b/plugins/PostProcessingPlugin/PostProcessingPlugin.py
@@ -348,7 +348,9 @@ class PostProcessingPlugin(QObject, Extension):
             # No signature needed
             return True
 
-        if os.path.split(file_path) == os.path.join(Resources.getStoragePath(Resources.Resources), "scripts"):
+        if os.path.split(file_path)[0] == os.path.join(
+                PluginRegistry.getInstance().getPluginPath("PostProcessingPlugin"),
+                "scripts"):
             # Bundled scripts are trusted.
             return True
 
diff --git a/plugins/PostProcessingPlugin/tests/TestPostProcessingPlugin.py b/plugins/PostProcessingPlugin/tests/TestPostProcessingPlugin.py
index 2c9a25fcac..360ea344ca 100644
--- a/plugins/PostProcessingPlugin/tests/TestPostProcessingPlugin.py
+++ b/plugins/PostProcessingPlugin/tests/TestPostProcessingPlugin.py
@@ -3,6 +3,7 @@ import os
 import sys
 from unittest.mock import patch, MagicMock
 
+from UM.PluginRegistry import PluginRegistry
 from UM.Resources import Resources
 from UM.Trust import Trust
 from ..PostProcessingPlugin import PostProcessingPlugin
@@ -12,6 +13,9 @@ sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), ".."))
 
 """ In this file, commnunity refers to regular Cura for makers."""
 
+mock_plugin_registry = MagicMock()
+mock_plugin_registry.getPluginPath = MagicMock(return_value = "mocked_plugin_path")
+
 
 # noinspection PyProtectedMember
 @patch("cura.ApplicationMetadata.IsEnterpriseVersion", False)
@@ -27,19 +31,22 @@ def test_community_bundled_script_allowed():
 
 # noinspection PyProtectedMember
 @patch("cura.ApplicationMetadata.IsEnterpriseVersion", True)
-def test_enterprise_unsigned_user_script_not_allowed():
+@patch.object(PluginRegistry, "getInstance", return_value=mock_plugin_registry)
+def test_enterprise_unsigned_user_script_not_allowed(plugin_registry):
     assert not PostProcessingPlugin._isScriptAllowed("blaat.py")
 
-
 # noinspection PyProtectedMember
 @patch("cura.ApplicationMetadata.IsEnterpriseVersion", True)
-def test_enterprise_signed_user_script_allowed():
+@patch.object(PluginRegistry, "getInstance", return_value=mock_plugin_registry)
+def test_enterprise_signed_user_script_allowed(plugin_registry):
     mocked_trust = MagicMock()
     mocked_trust.signedFileCheck = MagicMock(return_value=True)
 
+    plugin_registry.getPluginPath = MagicMock(return_value="mocked_plugin_path")
+
     with patch.object(Trust, "signatureFileExistsFor", return_value = True):
         with patch("UM.Trust.Trust.getInstanceOrNone", return_value=mocked_trust):
-            assert PostProcessingPlugin._isScriptAllowed("blaat.py")
+            assert PostProcessingPlugin._isScriptAllowed("mocked_plugin_path/scripts/blaat.py")
 
 
 # noinspection PyProtectedMember