diff --git a/netbox/extras/models/models.py b/netbox/extras/models/models.py
index 718cba5c12d..82af5d6fc5a 100644
--- a/netbox/extras/models/models.py
+++ b/netbox/extras/models/models.py
@@ -279,7 +279,7 @@ def render(self, context):
         text = clean_html(text, allowed_schemes)
 
         # Sanitize link
-        link = urllib.parse.quote_plus(link, safe='/:?&')
+        link = urllib.parse.quote_plus(link, safe='/:?&=%')
 
         # Verify link scheme is allowed
         result = urllib.parse.urlparse(link)