diff --git a/src/common/filesystem/include/fs_filesystem.h b/src/common/filesystem/include/fs_filesystem.h
index 858b748374..e817bc12d7 100644
--- a/src/common/filesystem/include/fs_filesystem.h
+++ b/src/common/filesystem/include/fs_filesystem.h
@@ -42,8 +42,8 @@ public:
 	void SetMaxIwadNum(int x) { MaxIwadIndex = x; }
 
 	bool InitSingleFile(const char *filename, FileSystemMessageFunc Printf = nullptr);
-	bool InitMultipleFiles (std::vector<std::string>& filenames, LumpFilterInfo* filter = nullptr, FileSystemMessageFunc Printf = nullptr, bool allowduplicates = false, FILE* hashfile = nullptr);
-	void AddFile (const char *filename, FileReader *wadinfo, LumpFilterInfo* filter, FileSystemMessageFunc Printf, FILE* hashfile);
+	bool InitMultipleFiles (std::vector<std::string>& filenames, LumpFilterInfo* filter = nullptr, FileSystemMessageFunc Printf = nullptr, bool allowduplicates = false);
+	void AddFile (const char *filename, FileReader *wadinfo, LumpFilterInfo* filter, FileSystemMessageFunc Printf);
 	int CheckIfResourceFileLoaded (const char *name) noexcept;
 	void AddAdditionalFile(const char* filename, FileReader* wadinfo = NULL) {}
 
diff --git a/src/common/filesystem/source/filesystem.cpp b/src/common/filesystem/source/filesystem.cpp
index fee5f10114..0bc0dd5fe9 100644
--- a/src/common/filesystem/source/filesystem.cpp
+++ b/src/common/filesystem/source/filesystem.cpp
@@ -238,7 +238,7 @@ bool FileSystem::InitSingleFile(const char* filename, FileSystemMessageFunc Prin
 	return InitMultipleFiles(filenames, nullptr, Printf);
 }
 
-bool FileSystem::InitMultipleFiles (std::vector<std::string>& filenames, LumpFilterInfo* filter, FileSystemMessageFunc Printf, bool allowduplicates, FILE* hashfile)
+bool FileSystem::InitMultipleFiles (std::vector<std::string>& filenames, LumpFilterInfo* filter, FileSystemMessageFunc Printf, bool allowduplicates)
 {
 	int numfiles;
 
@@ -269,7 +269,7 @@ bool FileSystem::InitMultipleFiles (std::vector<std::string>& filenames, LumpFil
 
 	for(size_t i=0;i<filenames.size(); i++)
 	{
-		AddFile(filenames[i].c_str(), nullptr, filter, Printf, hashfile);
+		AddFile(filenames[i].c_str(), nullptr, filter, Printf);
 
 		if (i == (unsigned)MaxIwadIndex) MoveLumpsInFolder("after_iwad/");
 		std::string path = "filter/%s";
@@ -327,7 +327,7 @@ int FileSystem::AddFromBuffer(const char* name, char* data, int size, int id, in
 // [RH] Removed reload hack
 //==========================================================================
 
-void FileSystem::AddFile (const char *filename, FileReader *filer, LumpFilterInfo* filter, FileSystemMessageFunc Printf, FILE* hashfile)
+void FileSystem::AddFile (const char *filename, FileReader *filer, LumpFilterInfo* filter, FileSystemMessageFunc Printf)
 {
 	int startlump;
 	bool isdir = false;
@@ -396,49 +396,10 @@ void FileSystem::AddFile (const char *filename, FileReader *filer, LumpFilterInf
 				path += ':';
 				path += resfile->getName(i);
 				auto embedded = resfile->GetEntryReader(i, READER_CACHED);
-				AddFile(path.c_str(), &embedded, filter, Printf, hashfile);
+				AddFile(path.c_str(), &embedded, filter, Printf);
 			}
 		}
 
-		if (hashfile)
-		{
-			uint8_t cksum[16];
-			char cksumout[33];
-			memset(cksumout, 0, sizeof(cksumout));
-
-			if (filereader.isOpen())
-			{
-				filereader.Seek(0, FileReader::SeekSet);
-				md5Hash(filereader, cksum);
-
-				for (size_t j = 0; j < sizeof(cksum); ++j)
-				{
-					snprintf(cksumout + (j * 2), 3, "%02X", cksum[j]);
-				}
-
-				fprintf(hashfile, "file: %s, hash: %s, size: %td\n", filename, cksumout, filereader.GetLength());
-			}
-
-			else
-				fprintf(hashfile, "file: %s, Directory structure\n", filename);
-
-			for (int i = 0; i < resfile->EntryCount(); i++)
-			{
-				int flags = resfile->GetEntryFlags(i);
-				if (!(flags & RESFF_EMBEDDED))
-				{
-					auto reader = resfile->GetEntryReader(i, READER_SHARED, 0);
-					md5Hash(filereader, cksum);
-
-					for (size_t j = 0; j < sizeof(cksum); ++j)
-					{
-						snprintf(cksumout + (j * 2), 3, "%02X", cksum[j]);
-					}
-
-					fprintf(hashfile, "file: %s, lump: %s, hash: %s, size: %zu\n", filename, resfile->getName(i), cksumout, (uint64_t)resfile->Length(i));
-				}
-			}
-		}
 		return;
 	}
 }
diff --git a/src/d_main.cpp b/src/d_main.cpp
index c00f2231c5..0971c48d15 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -3028,39 +3028,6 @@ static void System_HudScaleChanged()
 
 bool  CheckSkipGameOptionBlock(const char* str);
 
-//==========================================================================
-//
-//
-//
-//==========================================================================
-
-static FILE* D_GetHashFile()
-{
-	FILE *hashfile = nullptr;
-
-	if (Args->CheckParm("-hashfiles"))
-	{
-		const char *filename = "fileinfo.txt";
-		Printf("Hashing loaded content to: %s\n", filename);
-		hashfile = fopen(filename, "w");
-		if (hashfile)
-		{
-			Printf("Notice: File hashing is incredibly verbose. Expect loading files to take much longer than usual.\n");
-			fprintf(hashfile, "%s version %s (%s)\n", GAMENAME, GetVersionString(), GetGitHash());
-#ifdef __VERSION__
-			fprintf(hashfile, "Compiler version: %s\n", __VERSION__);
-#endif
-			fprintf(hashfile, "Command line:");
-			for (int i = 0; i < Args->NumArgs(); ++i)
-			{
-				fprintf(hashfile, " %s", Args->GetArg(i));
-			}
-			fprintf(hashfile, "\n");
-		}
-	}
-	return hashfile;
-}
-
 // checks if a file within a directory is allowed to be added to the file system.
 static bool FileNameCheck(const char* base, const char* path)
 {
@@ -3217,8 +3184,7 @@ static int D_InitGame(const FIWADInfo* iwad_info, std::vector<std::string>& allw
 	);
 
 	bool allowduplicates = Args->CheckParm("-allowduplicates");
-	auto hashfile = D_GetHashFile();
-	if (!fileSystem.InitMultipleFiles(allwads, &lfi, FileSystemPrintf, allowduplicates, hashfile))
+	if (!fileSystem.InitMultipleFiles(allwads, &lfi, FileSystemPrintf, allowduplicates))
 	{
 		I_FatalError("FileSystem: no files found");
 	}