diff --git a/frontend/src/views/chart/components/component-style/MarginSelector.vue b/frontend/src/views/chart/components/component-style/MarginSelector.vue
index 41ebf2aa2a..4bdb5ef16d 100644
--- a/frontend/src/views/chart/components/component-style/MarginSelector.vue
+++ b/frontend/src/views/chart/components/component-style/MarginSelector.vue
@@ -117,7 +117,11 @@ export default {
         }
         if (customStyle.margin) {
           this.marginForm = customStyle.margin
+        } else {
+          this.marginForm = JSON.parse(JSON.stringify(DEFAULT_MARGIN_STYLE))
         }
+      } else {
+        this.marginForm = JSON.parse(JSON.stringify(DEFAULT_MARGIN_STYLE))
       }
     },