diff --git a/include/nlohmann/detail/input/binary_reader.hpp b/include/nlohmann/detail/input/binary_reader.hpp
index 2a3172139..6474b8b05 100644
--- a/include/nlohmann/detail/input/binary_reader.hpp
+++ b/include/nlohmann/detail/input/binary_reader.hpp
@@ -75,7 +75,7 @@ class binary_reader
 
     @param[in] adapter  input adapter to read from
     */
-    explicit binary_reader(InputAdapterType&& adapter, const input_format_t format = input_format_t::json) noexcept : input_format(format), ia(std::move(adapter))
+    explicit binary_reader(InputAdapterType&& adapter, const input_format_t format = input_format_t::json) noexcept : ia(std::move(adapter)), input_format(format)
     {
         (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
     }
diff --git a/include/nlohmann/detail/output/binary_writer.hpp b/include/nlohmann/detail/output/binary_writer.hpp
index b7f63ff37..bb44a1811 100644
--- a/include/nlohmann/detail/output/binary_writer.hpp
+++ b/include/nlohmann/detail/output/binary_writer.hpp
@@ -1614,7 +1614,7 @@ class binary_writer
         };
 
         string_t key = "_ArrayType_";
-        auto it = bjdtype.find(value.at(key));
+        auto it = bjdtype.find(static_cast<string_t>(value.at(key)));
         if (it == bjdtype.end())
         {
             return true;
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index c4daa1e83..d596180c6 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -8451,7 +8451,7 @@ class binary_reader
 
     @param[in] adapter  input adapter to read from
     */
-    explicit binary_reader(InputAdapterType&& adapter, const input_format_t format = input_format_t::json) noexcept : input_format(format), ia(std::move(adapter))
+    explicit binary_reader(InputAdapterType&& adapter, const input_format_t format = input_format_t::json) noexcept : ia(std::move(adapter)), input_format(format)
     {
         (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
     }
@@ -15512,7 +15512,7 @@ class binary_writer
         };
 
         string_t key = "_ArrayType_";
-        auto it = bjdtype.find(value.at(key));
+        auto it = bjdtype.find(static_cast<string_t>(value.at(key)));
         if (it == bjdtype.end())
         {
             return true;