diff --git a/src/openflexure_microscope_server/things/smart_scan.py b/src/openflexure_microscope_server/things/smart_scan.py
index 30b7ae47..1cab19db 100644
--- a/src/openflexure_microscope_server/things/smart_scan.py
+++ b/src/openflexure_microscope_server/things/smart_scan.py
@@ -1045,7 +1045,7 @@ class SmartScanThing(Thing):
         # This is a list of file names that are updated as the scan goes,
         # and should only be zipped at the end of the scan - otherwise they'll
         # be appended on every loop as we can't overwrite files in the zip
-        files_to_delay = ['TileConfiguration', 'tiling_cache', 'stitched.jp', 'stitched_from']
+        files_to_delay = ['TileConfiguration', 'tiling_cache', 'stitched.jp', 'stitched_from', 'stitched.om']
 
         with zipfile.ZipFile(zip_fname, mode="a") as zip:
             for file in files:
diff --git a/webapp/src/components/tabContentComponents/slideScanContent.vue b/webapp/src/components/tabContentComponents/slideScanContent.vue
index b0407d8e..5618db5e 100644
--- a/webapp/src/components/tabContentComponents/slideScanContent.vue
+++ b/webapp/src/components/tabContentComponents/slideScanContent.vue
@@ -31,6 +31,13 @@
                   label="Image overlap (0-1)"
                 />
               </div>
+                <div class="uk-margin">
+                <propertyControl
+                  thing-name="smart_scan"
+                  property-name="stitch_tiff"
+                  label="When stitching, produce a pyramidal tiff"
+                />
+              </div>
             </div>
           </li>
           <li class="uk-open">