diff --git a/Source/UI/Window/UIWindowMgr.cpp b/Source/UI/Window/UIWindowMgr.cpp
index 8b6717e4..93af8dd0 100644
--- a/Source/UI/Window/UIWindowMgr.cpp
+++ b/Source/UI/Window/UIWindowMgr.cpp
@@ -1329,10 +1329,7 @@ void UIWindowMgr::DestroyPersistentWindows() {
 // FUNCTION: fn_17140
 void UIWindowMgr::RemoveSnapRectangle(UIWindow* window) {
   if (g_serviceOptions.Get(141)) {
-    const auto entry = this->snapRectangles.find(window);
-    if (entry != this->snapRectangles.end()) {
-      this->snapRectangles.erase(entry);
-    }
+    this->snapRectangles.erase(window);
   }
 }