diff --git a/src/generators/rss.cpp b/src/generators/rss.cpp
index 0fb4254..d48f2a0 100644
--- a/src/generators/rss.cpp
+++ b/src/generators/rss.cpp
@@ -206,6 +206,7 @@ int main(int argc, char *argv[])
     {
         git::clone();
         const auto entries{files::read_json_files()};
+        cout << "Content-Type: application/rss+xml\r\n\r\n";
         write_rss(cout, entries, {});
     }
     catch (const exception &e)