diff --git a/source/common/filesystem/filesystem.cpp b/source/common/filesystem/filesystem.cpp
index 83de9bbe9..c57b06113 100644
--- a/source/common/filesystem/filesystem.cpp
+++ b/source/common/filesystem/filesystem.cpp
@@ -920,6 +920,11 @@ static FResourceLump placeholderLump;
 
 void FileSystem::MoveLumpsInFolder(const char *path)
 {
+	if (FileInfo.Size() == 0)
+	{
+		return;
+	}
+	
 	auto len = strlen(path);
 	auto rfnum = FileInfo.Last().rfnum;
 	
diff --git a/source/common/filesystem/resourcefile.h b/source/common/filesystem/resourcefile.h
index 8e1ff92a6..bfd20e816 100644
--- a/source/common/filesystem/resourcefile.h
+++ b/source/common/filesystem/resourcefile.h
@@ -164,7 +164,6 @@ public:
 	const FString &GetHash() const { return Hash; }
 
 
-	//virtual bool Open(bool quiet, LumpFilterInfo* filter) = 0;
 	virtual FResourceLump *GetLump(int no) = 0;
 	FResourceLump *FindLump(const char *name);
 };