diff --git a/desktop_version/src/Game.cpp b/desktop_version/src/Game.cpp
index 847044da..03087fad 100644
--- a/desktop_version/src/Game.cpp
+++ b/desktop_version/src/Game.cpp
@@ -158,6 +158,8 @@ end:
 
 void Game::init(void)
 {
+    SDL_strlcpy(magic, "[vVvVvV]game", sizeof(magic));
+
     roomx = 0;
     roomy = 0;
     prevroomx = 0;
diff --git a/desktop_version/src/Game.h b/desktop_version/src/Game.h
index 6dc2517f..67cfac8e 100644
--- a/desktop_version/src/Game.h
+++ b/desktop_version/src/Game.h
@@ -132,6 +132,8 @@ struct CustomLevelStat
 
 class Game
 {
+    char magic[16];
+
 public:
     void init(void);