diff --git a/Dalamud.Boot/utils.h b/Dalamud.Boot/utils.h
index eef405b26..2cdaf60a7 100644
--- a/Dalamud.Boot/utils.h
+++ b/Dalamud.Boot/utils.h
@@ -267,6 +267,8 @@ namespace utils {
         return get_env_list<T>(unicode::convert<std::wstring>(pcszName).c_str());
     }
 
+    bool is_running_on_wine();
+
     std::filesystem::path get_module_path(HMODULE hModule);
 
     /// @brief Find the game main window.