diff --git a/news/SUP-52501.fix b/news/SUP-52501.fix
new file mode 100644
index 000000000..faf4398f8
--- /dev/null
+++ b/news/SUP-52501.fix
@@ -0,0 +1,2 @@
+Fix decisionDate filter: ensure getDecisionDate indexer always returns a DateTime (including PloneMeeting data).
+[WBoudabous]
\ No newline at end of file
diff --git a/src/Products/urban/indexes.py b/src/Products/urban/indexes.py
index bd34073f9..8025dc066 100644
--- a/src/Products/urban/indexes.py
+++ b/src/Products/urban/indexes.py
@@ -274,8 +274,9 @@ def genericlicence_decisiondate(licence):
                     )
                 return decision_date
         if linked_pm_items:
-            if "date" in linked_pm_items[0]["extra_include_meeting"].keys():
-                return linked_pm_items[0]["extra_include_meeting"]["date"]
+            date_str = linked_pm_items[0]["extra_include_meeting"].get("date")
+            if date_str:
+                return DateTime(date_str)
         return decision_event.getDecisionDate() or decision_event.getEventDate()