diff --git a/roles/xmpp_server/molecule/default/files/list_prosody_modules.lua b/roles/xmpp_server/molecule/default/files/list_prosody_modules.lua
new file mode 100644
index 0000000000000000000000000000000000000000..f5134b2fc6b2ce5810fe2bbb541a8034b533ca05
--- /dev/null
+++ b/roles/xmpp_server/molecule/default/files/list_prosody_modules.lua
@@ -0,0 +1,25 @@
+#!/usr/bin/env lua
+
+-- Override deault package path to include the Prosody configuration
+-- files.
+package.path = '/etc/prosody/?.cfg.lua;' .. package.path
+
+-- Declare a couple of dummy functions to deal with function
+-- invocations in Prosody configuration file. Dirty hack to avoid
+-- errors about undefined functions.
+function VirtualHost(...)
+end
+
+function Component(...)
+    return function() end
+end
+
+-- Read the configuration file (essentially running it as Lua code).
+require "prosody"
+
+-- Sort the modules and output them, one per line.
+table.sort(modules_enabled)
+
+for _, module in ipairs(modules_enabled) do
+    print(module)
+end
diff --git a/roles/xmpp_server/molecule/default/prepare.yml b/roles/xmpp_server/molecule/default/prepare.yml
index a3ba13b58393df2d5305e500bec1f0520c8f5952..684bfa9dcb79cb6d9562fe1d1622214a29ce0edf 100644
--- a/roles/xmpp_server/molecule/default/prepare.yml
+++ b/roles/xmpp_server/molecule/default/prepare.yml
@@ -232,7 +232,7 @@
           - uid=jane,ou=people,dc=local
           - uid=mick,ou=people,dc=local
 
-- hosts: parameters-optional
+- hosts: parameters-mandatory,parameters-optional
   become: true
   tasks:
 
@@ -240,3 +240,11 @@
       apt:
         name: sendxmpp
         state: present
+
+    - name: Deploy small Lua script for listing the enabled modules in Prosody
+      copy:
+        src: list_prosody_modules.lua
+        dest: "/usr/local/bin/list_prosody_modules.lua"
+        owner: root
+        group: root
+        mode: 0755
diff --git a/roles/xmpp_server/molecule/default/tests/test_default.py b/roles/xmpp_server/molecule/default/tests/test_default.py
index d2c12d490cd3f4ef1d6cb2705d7df39f88bbbc75..4223b36f22982762ce29c6f20a14086b5b379821 100644
--- a/roles/xmpp_server/molecule/default/tests/test_default.py
+++ b/roles/xmpp_server/molecule/default/tests/test_default.py
@@ -284,6 +284,39 @@ def test_prosody_configuration_validity(host):
     assert check_config.rc == 0, check_config.stdout
 
 
+def test_enabled_modules(host):
+    """
+    Tests if correct modules have been enabled.
+    """
+
+    expected_modules = [
+        "admin_adhoc",
+        "announce",
+        "dialback",
+        "disco",
+        "legacyauth",
+        "pep",
+        "ping",
+        "posix",
+        "private",
+        "register",
+        "roster",
+        "saslauth",
+        "time",
+        "tls",
+        "uptime",
+        "vcard",
+        "version",
+    ]
+
+    with host.sudo():
+        module_list_command = host.run("/usr/local/bin/list_prosody_modules.lua")
+
+    enabled_modules = sorted(module_list_command.stdout.strip().splitlines())
+
+    assert enabled_modules == expected_modules
+
+
 # @TODO: Tests which were not implemented due to lack of out-of-box tools:
 #
 # - Proxy capability.