diff --git a/rowers/templates/plannedsessiondeleteconfirm.html b/rowers/templates/plannedsessiondeleteconfirm.html
index 52ccd481..89d45602 100644
--- a/rowers/templates/plannedsessiondeleteconfirm.html
+++ b/rowers/templates/plannedsessiondeleteconfirm.html
@@ -13,6 +13,11 @@
       <form action="" method="post">
         {% csrf_token %}
         <p>Are you sure you want to delete <em>{{ object }}</em>?</p>
+	{% if object.intervals_icu_id and object.manager.rower.intervals_delete_plannedsession %}
+	<p><input type="checkbox" checked name="intervals_delete" value="yes"> Confirm deletion on intervals.icu</p>
+	{% elif object.intervals_icu_id %}
+	<p><input type="checkbox" name="intervals_delete" value="yes"> Also delete on intervals.icu</p>
+	{% endif %}
         <input class="button red" type="submit" value="Confirm">
       </form>
     </p>
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index 3db752f7..24b1bf39 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ
diff --git a/rowers/views/planviews.py b/rowers/views/planviews.py
index 06ba2bd1..0300d385 100644
--- a/rowers/views/planviews.py
+++ b/rowers/views/planviews.py
@@ -2561,6 +2561,15 @@ def plannedsession_view(request, id=0, userid=0):
 class PlannedSessionDelete(DeleteView):
     model = PlannedSession
     template_name = 'plannedsessiondeleteconfirm.html'
+    def post(self, request, *args, **kwargs):
+        post_data = request.POST
+        intervals_delete = post_data.get('intervals_delete', False)
+        if not intervals_delete:
+            # set intervals_icu_id of object to None
+            self.object = self.get_object()
+            self.object.intervals_icu_id = None
+            self.object.save()
+        return super(PlannedSessionDelete, self).post(request, *args, **kwargs)
 
     # extra parameters
     def get_context_data(self, **kwargs):