diff --git a/src/gfxinit.cpp b/src/gfxinit.cpp
--- a/src/gfxinit.cpp
+++ b/src/gfxinit.cpp
@@ -405,7 +405,7 @@ MD5File::ChecksumResult MD5File::CheckMD
 
 	if (f == nullptr) return CR_NO_FILE;
 
-	size = min(size, max_size);
+	size = std::min(size, max_size);
 
 	Md5 checksum;
 	uint8 buffer[1024];