diff --git a/setup.sh b/setup.sh
index 850ed65..fa2841a 100644
--- a/setup.sh
+++ b/setup.sh
@@ -12,6 +12,10 @@ TIMEZONE=Europe/Vienna
 # Set the name of the new user to create.
 USERNAME=alfheim
 
+# Prompt to enter a password for the PostgreSQL greenlight user (rather than hard-coding
+# a password in this script).
+read -p "Enter password for greenlight DB user: " DB_PASSWORD
+
 # Force all output to be presented in en_US for the duration of this script. This avoids
 # any "setting locale failed" errors while this script is running, before we have
 # installed support for all locales. Do not change this setting!