diff --git a/Makefile b/Makefile
index 38bccbe..46626b4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PAGES := index.html 404.html info.html
-SHARED_FILES := stallman.webp stallman_2024.webp favicon.ico \
+SHARED_FILES := stallman.webp stallman_2024.webp favicon.ico poster.webp \
 				moon.svg sun.svg narrow_light.svg narrow_dark.svg wide_light.svg wide_dark.svg \
 				styles.css icons.css \
 				countdown.js theme.js