diff --git a/src/bnusio.cpp b/src/bnusio.cpp
index e535c96..82e8528 100644
--- a/src/bnusio.cpp
+++ b/src/bnusio.cpp
@@ -5,6 +5,8 @@
 
 extern GameVersion version;
 extern std::vector<HMODULE> plugins;
+extern u64 song_data_size;
+extern void *song_data;
 extern char accessCode1[21];
 extern char accessCode2[21];
 extern char chipId1[33];
diff --git a/src/dllmain.cpp b/src/dllmain.cpp
index fd788e8..9b283ef 100644
--- a/src/dllmain.cpp
+++ b/src/dllmain.cpp
@@ -6,6 +6,8 @@
 
 GameVersion gameVersion = GameVersion::UNKNOWN;
 std::vector<HMODULE> plugins;
+u64 song_data_size = 1024 * 1024 * 64;
+void *song_data;
 
 std::string server      = "127.0.0.1";
 std::string port        = "54430";
diff --git a/src/patches/jp_nov_2020.cpp b/src/patches/jp_nov_2020.cpp
index 493d79b..e076745 100644
--- a/src/patches/jp_nov_2020.cpp
+++ b/src/patches/jp_nov_2020.cpp
@@ -2,8 +2,8 @@
 #include "patches.h"
 #include <safetyhook.hpp>
 
-const u64 song_data_size = 1024 * 1024 * 64;
-void *song_data;
+extern u64 song_data_size;
+extern void *song_data;
 
 #define RDX_MOV 0x48, 0xBA
 #define R8_MOV  0x49, 0xB8