diff --git a/Source/UI/Window/UIWindowMgr.cpp b/Source/UI/Window/UIWindowMgr.cpp
index 72fc0a6e..50dcc995 100644
--- a/Source/UI/Window/UIWindowMgr.cpp
+++ b/Source/UI/Window/UIWindowMgr.cpp
@@ -621,3 +621,11 @@ UIWindowMgr::~UIWindowMgr() {
   this->savedRectangles.clear();
 }
 
+// OFFSET: 0x00A8B840
+// FUNCTION: fn_17124
+void UIWindowMgr::RegisterNamedWindow(std::string name, UIWindow* window) {
+  if (this->namedWindows.find(name) == this->namedWindows.end()) {
+    this->namedWindows[name] = window;
+  }
+}
+
diff --git a/Source/UI/Window/UIWindowMgr.h b/Source/UI/Window/UIWindowMgr.h
index 0bcca5a1..a87157d0 100644
--- a/Source/UI/Window/UIWindowMgr.h
+++ b/Source/UI/Window/UIWindowMgr.h
@@ -341,7 +341,7 @@ public:
   /* 04F4 */ int unknown_04F4;
   /* 04F8 */ int unknown_04F8;
   /* 04FC */ int unknown_04FC;
-  /* 0500 */ std::map<std::string, int> namedWindows;
+  /* 0500 */ std::map<std::string, UIWindow*> namedWindows;
   /* 0508 */ int unknown_0508;
   /* 050C */ std::list<UIWindow*> hiddenWindows;
   /* 0514 */ unsigned char unknown_0514[0x12];
@@ -421,6 +421,7 @@ public:
   void Schedule(UIWindow* window);
   void Destroy(UIWindow* window);
   void DismissTransient();
+  void RegisterNamedWindow(std::string name, UIWindow* window);
 };
 
 extern UIWindowMgr g_windowMgr;