diff --git a/include/imageinfo.hpp b/include/imageinfo.hpp
index 2049de4..44c0897 100644
--- a/include/imageinfo.hpp
+++ b/include/imageinfo.hpp
@@ -310,7 +310,7 @@ class ReadInterface {
 
     ReadInterface(ReadFunc &read_func, size_t length) : read_func_(read_func), length_(length) {
 #ifndef II_DISABLE_HEADER_CACHE
-        header_cache_.alloc(std::min((size_t)II_HEADER_CACHE_SIZE, length));
+        header_cache_.alloc((std::min)((size_t)II_HEADER_CACHE_SIZE, length));
         read(header_cache_.data(), 0, header_cache_.size());
 #endif
     }
@@ -737,7 +737,7 @@ bool try_icns(ReadInterface &ri, size_t length, ImageInfo &info) {
         uint32_t entry_size = buffer.read_u32_be(4);
         int64_t s = size_map.at(type);
         entry_sizes.emplace_back(s, s);
-        max_size = std::max(max_size, s);
+        max_size = (std::max)(max_size, s);
         offset += entry_size;
     }