diff --git a/web/app.py b/web/app.py
index 90aa9e1..223d4a1 100644
--- a/web/app.py
+++ b/web/app.py
@@ -100,7 +100,8 @@ def string_generator(data_incoming):
   keys = sorted(data.keys())
   string_arr = []
   for key in keys:
-    string_arr.append(key + '=' + (data[key] if key in data else ''))
+    if data[key] is not None:
+      string_arr.append(key + '=' + data[key])
   string_cat = '\n'.join(string_arr)
   return string_cat