diff --git a/Source/codec.cpp b/Source/codec.cpp
index 9e5ffb869..49a7831d8 100644
--- a/Source/codec.cpp
+++ b/Source/codec.cpp
@@ -66,7 +66,7 @@ error:
 void codec_init_key(int unused, char *pszPassword)
 {
 	char key[136]; // last 64 bytes are the SHA1
-	std::uint32_t rand_state = 0x7058;
+	uint32_t rand_state = 0x7058;
 	for (std::size_t i = 0; i < sizeof(key); ++i) {
 		rand_state = rand_state * 214013 + 2531011;
 		key[i] = rand_state >> 16; // Downcasting to char keeps the 2 least-significant bytes
diff --git a/Source/mpqapi.cpp b/Source/mpqapi.cpp
index 0f54420be..67a1032ba 100644
--- a/Source/mpqapi.cpp
+++ b/Source/mpqapi.cpp
@@ -262,11 +262,11 @@ private:
 		memset(&fhdr, 0, sizeof(fhdr));
 		fhdr.signature = SDL_SwapLE32('\x1AQPM');
 		fhdr.headersize = SDL_SwapLE32(32);
-		fhdr.filesize = SDL_SwapLE32(static_cast<std::uint32_t>(size));
+		fhdr.filesize = SDL_SwapLE32(static_cast<uint32_t>(size));
 		fhdr.version = SDL_SwapLE16(0);
 		fhdr.sectorsizeid = SDL_SwapLE16(3);
-		fhdr.hashoffset = SDL_SwapLE32(static_cast<std::uint32_t>(kMpqHashEntryOffset));
-		fhdr.blockoffset = SDL_SwapLE32(static_cast<std::uint32_t>(kMpqBlockEntryOffset));
+		fhdr.hashoffset = SDL_SwapLE32(static_cast<uint32_t>(kMpqHashEntryOffset));
+		fhdr.blockoffset = SDL_SwapLE32(static_cast<uint32_t>(kMpqBlockEntryOffset));
 		fhdr.hashcount = SDL_SwapLE32(2048);
 		fhdr.blockcount = SDL_SwapLE32(2048);
 
@@ -514,9 +514,9 @@ BOOL mpqapi_write_file_contents(const char *pszName, const BYTE *pbData, DWORD d
 		str_ptr = tmp + 1;
 	Hash(str_ptr, 3);
 
-	constexpr std::uint32_t kSectorSize = 4096;
-	const std::uint32_t num_sectors = (dwLen + (kSectorSize - 1)) / kSectorSize;
-	const std::uint32_t offset_table_bytesize = sizeof(std::uint32_t) * (num_sectors + 1);
+	constexpr uint32_t kSectorSize = 4096;
+	const uint32_t num_sectors = (dwLen + (kSectorSize - 1)) / kSectorSize;
+	const uint32_t offset_table_bytesize = sizeof(uint32_t) * (num_sectors + 1);
 	pBlk->offset = mpqapi_find_free_block(dwLen + offset_table_bytesize, &pBlk->sizealloc);
 	pBlk->sizefile = dwLen;
 	pBlk->flags = 0x80000100;
@@ -524,7 +524,7 @@ BOOL mpqapi_write_file_contents(const char *pszName, const BYTE *pbData, DWORD d
 	// We populate the table of sector offset while we write the data.
 	// We can't pre-populate it because we don't know the compressed sector sizes yet.
 	// First offset is the start of the first sector, last offset is the end of the last sector.
-	std::unique_ptr<std::uint32_t[]> sectoroffsettable(new std::uint32_t[num_sectors + 1]);
+	std::unique_ptr<uint32_t[]> sectoroffsettable(new uint32_t[num_sectors + 1]);
 
 #ifdef CAN_SEEKP_BEYOND_EOF
 	if (!cur_archive.stream.seekp(pBlk->offset + offset_table_bytesize, std::ios::beg))
@@ -550,11 +550,11 @@ BOOL mpqapi_write_file_contents(const char *pszName, const BYTE *pbData, DWORD d
 #endif
 
 	const BYTE *src = pbData;
-	std::uint32_t destsize = offset_table_bytesize;
+	uint32_t destsize = offset_table_bytesize;
 	BYTE mpq_buf[kSectorSize];
 	std::size_t cur_sector = 0;
 	while (true) {
-		std::uint32_t len = std::min(dwLen, kSectorSize);
+		uint32_t len = std::min(dwLen, kSectorSize);
 		memcpy(mpq_buf, src, len);
 		src += len;
 		len = PkwareCompress(mpq_buf, len);
@@ -577,7 +577,7 @@ BOOL mpqapi_write_file_contents(const char *pszName, const BYTE *pbData, DWORD d
 		return FALSE;
 
 	if (destsize < pBlk->sizealloc) {
-		const std::uint32_t block_size = pBlk->sizealloc - destsize;
+		const uint32_t block_size = pBlk->sizealloc - destsize;
 		if (block_size >= 1024) {
 			pBlk->sizealloc = destsize;
 			mpqapi_alloc_block(pBlk->sizealloc + pBlk->offset, block_size);
diff --git a/Source/sha.cpp b/Source/sha.cpp
index bb25b427c..07715a01c 100644
--- a/Source/sha.cpp
+++ b/Source/sha.cpp
@@ -12,7 +12,7 @@ namespace {
 /*
  * Diablo-"SHA1" circular left shift, portable version.
  */
-std::uint32_t SHA1CircularShift(std::uint32_t bits, std::uint32_t word) {
+uint32_t SHA1CircularShift(uint32_t bits, uint32_t word) {
 	assert(bits < 32);
 	assert(bits > 0);
 
diff --git a/SourceX/display.cpp b/SourceX/display.cpp
index 57edd8e54..a25b4ff8c 100644
--- a/SourceX/display.cpp
+++ b/SourceX/display.cpp
@@ -24,7 +24,7 @@ extern BOOL was_window_init; /** defined in dx.cpp */
 extern SDL_Surface *renderer_texture_surface; /** defined in dx.cpp */
 
 #ifdef USE_SDL1
-void SetVideoMode(int width, int height, int bpp, std::uint32_t flags) {
+void SetVideoMode(int width, int height, int bpp, uint32_t flags) {
 	SDL_Log("Setting video mode %dx%d bpp=%u flags=0x%08X", width, height, bpp, flags);
 	SDL_SetVideoMode(width, height, bpp, flags);
 	const auto &current = *SDL_GetVideoInfo();
diff --git a/SourceX/display.h b/SourceX/display.h
index 06dc5ff0b..48ed973c4 100644
--- a/SourceX/display.h
+++ b/SourceX/display.h
@@ -18,7 +18,7 @@ extern SDL_Surface *pal_surface;
 extern unsigned int pal_surface_palette_version;
 
 #ifdef USE_SDL1
-void SetVideoMode(int width, int height, int bpp, std::uint32_t flags);
+void SetVideoMode(int width, int height, int bpp, uint32_t flags);
 bool IsFullScreen();
 void SetVideoModeToPrimary(bool fullscreen = IsFullScreen());
 #endif