diff --git a/Source/Contents/ClientTiming.cpp b/Source/Contents/ClientTiming.cpp
index ae10192a..ae62e0f4 100644
--- a/Source/Contents/ClientTiming.cpp
+++ b/Source/Contents/ClientTiming.cpp
@@ -51,6 +51,20 @@ private:
 
 }
 
+struct NaviUnknownBlock {
+  /* 0000 */ int unknown_0000;
+  /* 0004 */ int unknown_0004;
+  /* 0008 */ int unknown_0008;
+  /* 000C */ int unknown_000C;
+  /* 0010 */ int unknown_0010;
+  /* 0014 */ int unknown_0014;
+  /* 0018 */ int unknown_0018;
+  /* 001C */ int unknown_001C;
+  /* 0020 */ int unknown_0020;
+
+  NaviUnknownBlock();
+};
+
 // OFFSET: 0x00B8C870
 // FUNCTION: fn_19426
 CNavi_Object::CNavi_Object()
@@ -58,6 +72,13 @@ CNavi_Object::CNavi_Object()
       unknown_006C(0), unknown_0070(0), unknown_0074(0), unknown_0078(0) {
 }
 
+// OFFSET: 0x00B8C990
+// FUNCTION: fn_19427
+NaviUnknownBlock::NaviUnknownBlock()
+    : unknown_0000(0), unknown_0004(0), unknown_0008(0), unknown_000C(0), unknown_0010(0), unknown_0014(0), unknown_0018(0), unknown_001C(0),
+      unknown_0020(0) {
+}
+
 // OFFSET: 0x00B8C710
 // FUNCTION: fn_19425
 CNavi_Object::CNavi_Object(int type, int index, const char* name, const char* title, int cellX, int cellY, CNaviInfo* info)