diff --git a/config/sender.toml b/config/sender.toml
index a0832dca..ea60c729 100644
--- a/config/sender.toml
+++ b/config/sender.toml
@@ -12,4 +12,4 @@ collection="zone-queue"
 # Hashing secret for loop detection
 # Must be shared with haraka-plugin-wildduck
 # If not set then looping is not tracked
-loopSecret=""
\ No newline at end of file
+#loopSecret="secret value"
\ No newline at end of file
diff --git a/setup/07_install_wildduck.sh b/setup/07_install_wildduck.sh
index 072df9f9..61043191 100755
--- a/setup/07_install_wildduck.sh
+++ b/setup/07_install_wildduck.sh
@@ -53,6 +53,7 @@ group=\"wildduck\"
 emailDomain=\"$MAILDOMAIN\"" | cat - /etc/wildduck/wildduck.toml > temp && mv temp /etc/wildduck/wildduck.toml
 
 sed -i -e "s/localhost:3000/$HOSTNAME/g;s/localhost/$HOSTNAME/g;s/2587/587/g" /etc/wildduck/wildduck.toml
+sed -i -e "s/secret value/$SRS_SECRET/g;s/#loopSecret/loopSecret/g" /etc/wildduck/sender.toml
 
 cd /opt/wildduck
 npm install --production --unsafe-perm --no-optional --no-package-lock --no-audit --ignore-scripts --no-shrinkwrap
diff --git a/setup/08_install_haraka.sh b/setup/08_install_haraka.sh
index d742c465..6ebaf908 100755
--- a/setup/08_install_haraka.sh
+++ b/setup/08_install_haraka.sh
@@ -99,7 +99,7 @@ virus=true
 error=false' > config/clamd.ini
 
 cp plugins/wildduck/config/wildduck.yaml config/wildduck.yaml
-sed -i -e "s/secret value/$SRS_SECRET/g" config/wildduck.yaml
+sed -i -e "s/secret value/$SRS_SECRET/g;s/#loopSecret/loopSecret/g" config/wildduck.yaml
 
 # Ensure required files and permissions
 echo "d /opt/haraka 0755 deploy deploy" > /etc/tmpfiles.d/haraka.conf