diff --git a/README.md b/README.md
index 2f8ab93..7c0223a 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
-# Prolog - Docker mod for code-server
+# Prolog - Docker mod for code-server/openvscode-server
 
-This mod adds `prolog` to code-server, to be installed/updated during container start.
+This mod adds `prolog` to code-server/openvscode-server, to be installed/updated during container start.
 
-In openssh-server docker arguments, set an environment variable `DOCKER_MODS=linuxserver/mods:code-server-prolog`
+In code-server/openvscode-server docker arguments, set an environment variable `DOCKER_MODS=linuxserver/mods:code-server-prolog`
 
 If adding multiple mods, enter them in an array separated by `|`, such as `DOCKER_MODS=linuxserver/mods:code-server-prolog|linuxserver/mods:code-server-java`
 
diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/dependencies.d/init-mods b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/dependencies.d/init-mods
new file mode 100644
index 0000000..e69de29
diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/run b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/run
new file mode 100755
index 0000000..78521ef
--- /dev/null
+++ b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/run
@@ -0,0 +1,8 @@
+#!/usr/bin/with-contenv bash
+
+if ! dpkg -l | grep gprolog > /dev/null; then
+    echo "**** Adding gprolog to package install list ****"
+    echo "gprolog" >> /mod-repo-packages-to-install.list
+else
+    echo "**** gprolog already installed ****"
+fi    
diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/type b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/type
new file mode 100644
index 0000000..3d92b15
--- /dev/null
+++ b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/type
@@ -0,0 +1 @@
+oneshot
\ No newline at end of file
diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/up b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/up
new file mode 100644
index 0000000..3b35443
--- /dev/null
+++ b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/up
@@ -0,0 +1 @@
+/etc/s6-overlay/s6-rc.d/init-mod-code-server-prolog-add-package/run
\ No newline at end of file
diff --git a/root/etc/s6-overlay/s6-rc.d/init-mods-package-install/dependencies.d/init-mod-code-server-prolog-add-package b/root/etc/s6-overlay/s6-rc.d/init-mods-package-install/dependencies.d/init-mod-code-server-prolog-add-package
new file mode 100644
index 0000000..e69de29
diff --git a/root/etc/s6-overlay/s6-rc.d/user/contents.d/init-mod-code-server-prolog-add-package b/root/etc/s6-overlay/s6-rc.d/user/contents.d/init-mod-code-server-prolog-add-package
new file mode 100644
index 0000000..e69de29