diff --git a/src/sentry/integrations/slack/unfurl/dashboards.py b/src/sentry/integrations/slack/unfurl/dashboards.py
index 916fe6f50924..9d38d005a3b5 100644
--- a/src/sentry/integrations/slack/unfurl/dashboards.py
+++ b/src/sentry/integrations/slack/unfurl/dashboards.py
@@ -74,6 +74,7 @@ class DashboardsUnfurlArgs(TypedDict):
     DashboardWidgetTypes.LOGS: SupportedTraceItemType.LOGS.value,
     DashboardWidgetTypes.TRACEMETRICS: SupportedTraceItemType.TRACEMETRICS.value,
     DashboardWidgetTypes.ERROR_EVENTS: "errors",
+    DashboardWidgetTypes.PREPROD_APP_SIZE: "preprodSize",
 }
 
 
diff --git a/tests/sentry/integrations/slack/test_unfurl.py b/tests/sentry/integrations/slack/test_unfurl.py
index b5f11f0e2c71..d6dd04974397 100644
--- a/tests/sentry/integrations/slack/test_unfurl.py
+++ b/tests/sentry/integrations/slack/test_unfurl.py
@@ -2451,6 +2451,18 @@ def test_errors_widget(self) -> None:
         assert all_params[0]["yAxis"] == ["count()"]
         assert all_params[0]["query"] == "level:error"
 
+    def test_preprod_app_size_widget(self) -> None:
+        widget = self._make_widget(
+            widget_type=DashboardWidgetTypes.PREPROD_APP_SIZE,
+            queries=[{"aggregates": ["max(install_size)"]}],
+        )
+
+        all_params = build_widget_timeseries_params(widget, QueryDict("statsPeriod=7d"))
+
+        assert len(all_params) == 1
+        assert all_params[0]["dataset"] == "preprodSize"
+        assert all_params[0]["yAxis"] == ["max(install_size)"]
+
     def test_multiple_queries_returns_one_dict_each_in_order(self) -> None:
         widget = self._make_widget(
             queries=[