diff --git a/slides_template/talk-notes.sty b/slides_template/talk-notes.sty
index 456b668..9b46620 100644
--- a/slides_template/talk-notes.sty
+++ b/slides_template/talk-notes.sty
@@ -70,6 +70,14 @@
 % output lines.
 \NewDocumentCommand \note { d<> o +m }
   {
+    % Run the spec through the class's overlay test, discarding the result:
+    % its side effect asks for the slides the spec names, so a frame whose
+    % only <2> is on a note still gets two slides, as under beamer.
+    \IfNoValueF {#1}
+      {
+        \cs_if_exist:NT \__talk_if_overlay:nT
+          { \__talk_if_overlay:nT {#1} { } }
+      }
     \iow_now:Nx \g__talknotes_iow
       {
         NOTE ~ FRAME ~ \int_use:N \g__talk_frame_int |