diff --git a/lib/www/client/source/src/views/Plan.vue b/lib/www/client/source/src/views/Plan.vue
index 1a373ed..01b6312 100644
--- a/lib/www/client/source/src/views/Plan.vue
+++ b/lib/www/client/source/src/views/Plan.vue
@@ -135,7 +135,7 @@
           <template v-slot:item.ts0="{item, value}">
             <v-edit-dialog v-if="writeaccess"
               large
-              @open="editItem(item, 'ts0', item.ts1.toISOString())"
+              @open="editItem(item, 'ts0', item.ts0.toISOString())"
               @save="edit = null"
               @cancel="edit.value = item.ts0; edit = null"
             >