diff --git a/src/frontends/lean/info_manager.cpp b/src/frontends/lean/info_manager.cpp
index 6ce628698..f14909853 100644
--- a/src/frontends/lean/info_manager.cpp
+++ b/src/frontends/lean/info_manager.cpp
@@ -442,9 +442,7 @@ struct info_manager::imp {
 
     void display(environment const & env, io_state const & ios, unsigned line) {
         lock_guard<mutex> lc(m_mutex);
-        if (line >= m_processed_upto && line < m_line_valid.size() && !m_line_valid[line]) {
-            regular(env, ios) << "-- NAY\n";
-        } else if (line >= m_line_data.size() || m_line_data[line].empty()) {
+        if (line >= m_line_data.size() || m_line_data[line].empty()) {
             // do nothing
         } else if (m_env_info.empty()) {
             display_core(env, ios.get_options(), ios, line);
diff --git a/src/frontends/lean/server.cpp b/src/frontends/lean/server.cpp
index e642cbef4..a15ad64a5 100644
--- a/src/frontends/lean/server.cpp
+++ b/src/frontends/lean/server.cpp
@@ -361,7 +361,12 @@ void server::set_option(std::string const & line) {
 
 void server::show_info(unsigned linenum) {
     check_file();
-    m_out << "-- BEGININFO" << std::endl;
+    m_out << "-- BEGININFO";
+    if (m_file->infom().is_invalidated(linenum))
+        m_out << " STALE";
+    if (linenum >= m_file->infom().get_processed_upto())
+        m_out << " NAY";
+    m_out << std::endl;
     m_file->infom().display(m_env, m_ios, linenum);
     m_out << "-- ENDINFO" << std::endl;
 }