diff --git a/calibre_web/Dockerfile b/calibre_web/Dockerfile
index b87ebb8b0..9b564feed 100644
--- a/calibre_web/Dockerfile
+++ b/calibre_web/Dockerfile
@@ -35,6 +35,12 @@ RUN \
     && echo '#!/bin/sh' > /usr/bin/xdg-desktop-menu && chmod +x /usr/bin/xdg-desktop-menu \
     && echo '#!/bin/sh' > /usr/bin/xdg-mime && chmod +x /usr/bin/xdg-mime
 
+# Install calibre binaries (provides calibredb required for book downloads)
+# hadolint ignore=DL4006
+RUN \
+    wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sh /dev/stdin install_dir=/opt/calibre
+ENV PATH="/opt/calibre:${PATH}"
+
 # Global LSIO modifications
 COPY ha_lsio.sh /ha_lsio.sh
 ARG CONFIGLOCATION="/config"