diff --git a/include/ifilesystem.h b/include/ifilesystem.h
index 7f871572cd..6b3dd2f463 100644
--- a/include/ifilesystem.h
+++ b/include/ifilesystem.h
@@ -109,10 +109,6 @@ class VirtualFileSystem :
 		virtual void onFileSystemShutdown() {}
 	};
 
-	/// \brief Adds a root search \p path.
-	/// Called before \c initialise.
-	virtual void initDirectory(const std::string& path) = 0;
-
 	typedef std::set<std::string> ExtensionSet;
 
 	// Initialises the filesystem using the given search order.
diff --git a/radiant/vfs/Doom3FileSystem.h b/radiant/vfs/Doom3FileSystem.h
index 3f7c9bd253..c8bf68e188 100644
--- a/radiant/vfs/Doom3FileSystem.h
+++ b/radiant/vfs/Doom3FileSystem.h
@@ -31,7 +31,6 @@ class Doom3FileSystem :
 	ObserverList _observers;
 
 public:
-	void initDirectory(const std::string& path) override;
 	void initialise(const SearchPaths& vfsSearchPaths, const ExtensionSet& allowedExtensions) override;
 	void shutdown() override;
 
@@ -67,6 +66,7 @@ class Doom3FileSystem :
 	void shutdownModule() override;
 
 private:
+	void initDirectory(const std::string& path);
 	void initPakFile(const std::string& filename);
 };