diff --git a/Source/Archive/GPak.cpp b/Source/Archive/GPak.cpp
index 387e485..2ce2d91 100644
--- a/Source/Archive/GPak.cpp
+++ b/Source/Archive/GPak.cpp
@@ -1,4 +1,5 @@
 #include "Archive/GPak.h"
+#include "Archive/GPakUpdate.h"
 #include "Archive/PakCipher.h"
 
 #include <algorithm>
@@ -412,3 +413,8 @@ void CGPak::ReadAuxiliary(std::vector<std::uint8_t>& output, std::uint64_t* iden
     *identifier = ReadAuxiliaryIdentifier(output.data(), output.size());
   }
 }
+
+// OFFSET: 0x00E555A0
+// FUNCTION: fn_24306
+myGPack::CGPakUpdate::CGPakUpdate() {
+}
diff --git a/Source/Archive/GPakUpdate.h b/Source/Archive/GPakUpdate.h
index 9a7e4a3..9339ec4 100644
--- a/Source/Archive/GPakUpdate.h
+++ b/Source/Archive/GPakUpdate.h
@@ -42,6 +42,8 @@ namespace myGPack {
 
   class CGPakUpdate : public CGPakRead {
   public:
+    CGPakUpdate();
+
     bool Open(const char* filename);
     bool Commit(CNotifier* notifier);
     void Close();