diff --git a/netbox/utilities/utils.py b/netbox/utilities/utils.py
index a3609b478..f635fc728 100644
--- a/netbox/utilities/utils.py
+++ b/netbox/utilities/utils.py
@@ -19,6 +19,7 @@ from dcim.choices import CableLengthUnitChoices, WeightUnitChoices
 from extras.plugins import PluginConfig
 from extras.utils import is_taggable
 from netbox.config import get_config
+from urllib.parse import urlencode
 from utilities.constants import HTTP_REQUEST_META_SAFE_COPY
 
 
@@ -353,7 +354,7 @@ def prepare_cloned_fields(instance):
             params.append((key, ''))
 
     # Return a QueryDict with the parameters
-    return QueryDict('&'.join([f'{k}={v}' for k, v in params]), mutable=True)
+    return QueryDict(urlencode(params), mutable=True)
 
 
 def shallow_compare_dict(source_dict, destination_dict, exclude=None):