diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a396102b..dfed918d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@ You should also include the user name that made the change.
 ## 12.x.x (unreleased)
 
 ### Improvements
-- 
+- クライアント: スマートフォンでの余白を調整 @syuilo
 
 ### Bugfixes
 - クライアント: ノートの詳細が表示されない問題を修正 @syuilo
diff --git a/packages/client/src/components/global/spacer.vue b/packages/client/src/components/global/spacer.vue
index 8a1d7a4e8..f2eda1907 100644
--- a/packages/client/src/components/global/spacer.vue
+++ b/packages/client/src/components/global/spacer.vue
@@ -7,6 +7,7 @@
 </template>
 
 <script lang="ts">
+import { deviceKind } from '@/scripts/device-kind';
 import { defineComponent, inject, onMounted, onUnmounted, ref } from 'vue';
 
 export default defineComponent({
@@ -35,7 +36,7 @@ export default defineComponent({
 		const margin = ref(0);
 		const shouldSpacerMin = inject('shouldSpacerMin', false);
 		const adjust = (rect: { width: number; height: number; }) => {
-			if (shouldSpacerMin) {
+			if (shouldSpacerMin || deviceKind === 'smartphone') {
 				margin.value = props.marginMin;
 				return;
 			}