diff --git a/include/bit7z/bitinputarchive.hpp b/include/bit7z/bitinputarchive.hpp
index bf277dbd..d4c1fea9 100644
--- a/include/bit7z/bitinputarchive.hpp
+++ b/include/bit7z/bitinputarchive.hpp
@@ -260,6 +260,8 @@ class BitInputArchive {
         /**
          * @brief Extracts the content of the archive to the given raw data callback.
          *
+         * @note You can set a FileCallback to check the file being extracted.
+         *
          * @param callback  a function providing the extracted raw data to the user.
          */
         void extractTo( RawDataCallback callback ) const;
@@ -267,6 +269,8 @@ class BitInputArchive {
         /**
          * @brief Extracts the raw content of the archive to the given callback.
          *
+         * @note You can set a FileCallback to check the file being extracted.
+         *
          * @param callback  a function providing the extracted raw data to the user.
          */
         void extractTo( RawDataCallback callback, const std::vector< uint32_t >& indices ) const;