diff --git a/src/components/DialogHeader.vue b/src/components/DialogHeader.vue
index 325277f16..19ee3f536 100644
--- a/src/components/DialogHeader.vue
+++ b/src/components/DialogHeader.vue
@@ -10,6 +10,7 @@
       dense
       @click="close"
       @keydown.enter.prevent
+      @keydown.space.prevent
       style="color: #ff8080; background-color: #ffdede"
     />
   </q-toolbar>