diff --git a/bibliotecha.sh b/bibliotecha.sh
index da9bb5f..8967405 100644
--- a/bibliotecha.sh
+++ b/bibliotecha.sh
@@ -327,7 +327,7 @@ function configure_calibre_database {
 function install_calibreweb {
   echo "Installing Calibre-web ..."
 
-  $APT_INSTALL_CMD git python3 python3-pip python3-dev python3-venv
+  $APT_INSTALL_CMD git python3 python3-pip python3-dev python3-venv ghostscript
 
   calibre_web_url="https://github.com/janeczku/calibre-web"