diff --git a/src/mapper/mapper.cc b/src/mapper/mapper.cc
index 58c5ac7..24d3fe3 100644
--- a/src/mapper/mapper.cc
+++ b/src/mapper/mapper.cc
@@ -17,6 +17,7 @@
 
 namespace fallout {
 
+static void bookmarkUnHide();
 static int categoryInit();
 static int categoryExit();
 static int categoryHide();
@@ -32,6 +33,9 @@ static void mapper_mark_all_exit_grids();
 // 0x559748
 MapTransition mapInfo = { -1, -1, 0, 0 };
 
+// 0x5598A8
+static int bookmarkWin = -1;
+
 // 0x5598AC
 static int categoryWin = -1;
 
@@ -44,6 +48,14 @@ unsigned char* tool;
 // 0x6EC4AC
 int tool_win;
 
+// 0x4875F8
+void bookmarkUnHide()
+{
+    if (bookmarkWin != -1) {
+        windowShow(bookmarkWin);
+    }
+}
+
 // 0x4875B4
 int categoryInit()
 {