diff --git a/public/raid/raid.hpp b/public/raid/raid.hpp
index f6410ba..e0a2f44 100644
--- a/public/raid/raid.hpp
+++ b/public/raid/raid.hpp
@@ -89,7 +89,7 @@ public:
     virtual ~Application() = default;
 
     [[nodiscard]]
-    const mijin::StackedFileSystemAdapter& getFS() const { return mFS; }
+    mijin::StackedFileSystemAdapter& getFS() { return mFS; }
 
     [[nodiscard]]
     mijin::SimpleTaskLoop& getLoop() { return mTaskLoop; }