1 files changed, 1 insertions, 3 deletions
diff --git a/packages/frontend/src/components/global/StackingRouterView.vue b/packages/frontend/src/components/global/StackingRouterView.vue
index e9c24bfcb4..4c56767608 100644
--- a/packages/frontend/src/components/global/StackingRouterView.vue
+++ b/packages/frontend/src/components/global/StackingRouterView.vue
@@ -74,9 +74,7 @@ function mount() {
 }
 
 function back() {
-	const prev = tabs.value.at(tabs.value.length - 2);
-	if (prev == null) return; // transitionの関係でprevが無い状態でbackが呼ばれることがある
-
+	const prev = tabs.value[tabs.value.length - 2];
 	tabs.value = [...tabs.value.slice(0, tabs.value.length - 1)];
 	router?.replaceByPath(prev.fullPath);
 }