diff --git a/plugins/modules/vmware_vm_config_option.py b/plugins/modules/vmware_vm_config_option.py
index b260a7bb9..355cb2953 100644
--- a/plugins/modules/vmware_vm_config_option.py
+++ b/plugins/modules/vmware_vm_config_option.py
@@ -191,18 +191,18 @@ def get_config_option_recommended(self, guest_os_desc):
                     if dev_type == guest_os_desc[0].recommendedCdromController:
                         default_cdrom_ctl = name
             guest_os_option_dict = {
-                'guest_fullname': guest_os_desc[0].fullName,
-                'rec_cpu_cores_per_socket': guest_os_desc[0].numRecommendedCoresPerSocket,
-                'rec_cpu_socket': guest_os_desc[0].numRecommendedPhysicalSockets,
-                'rec_memory_mb': guest_os_desc[0].recommendedMemMB,
-                'default_firmware': guest_os_desc[0].recommendedFirmware,
-                'default_secure_boot': guest_os_desc[0].defaultSecureBoot,
-                'support_secure_boot': guest_os_desc[0].supportsSecureBoot,
-                'default_disk_controller': default_disk_ctl,
-                'rec_disk_mb': guest_os_desc[0].recommendedDiskSizeMB,
-                'default_ethernet': default_ethernet,
-                'default_cdrom_controller': default_cdrom_ctl,
-                'default_usb_controller': default_usb_ctl,
+                'Guest fullname': guest_os_desc[0].fullName,
+                'Default CPU cores per socket': guest_os_desc[0].numRecommendedCoresPerSocket,
+                'Default CPU socket': guest_os_desc[0].numRecommendedPhysicalSockets,
+                'Default memory in MB': guest_os_desc[0].recommendedMemMB,
+                'Default firmware': guest_os_desc[0].recommendedFirmware,
+                'Default secure boot': guest_os_desc[0].defaultSecureBoot,
+                'Support secure boot': guest_os_desc[0].supportsSecureBoot,
+                'Default disk controller': default_disk_ctl,
+                'Default disk size in MB': guest_os_desc[0].recommendedDiskSizeMB,
+                'Default network adapter': default_ethernet,
+                'Default CDROM controller': default_cdrom_ctl,
+                'Default USB controller': default_usb_ctl,
                 'support_tpm_20': guest_os_desc[0].supportsTPM20,
                 'support_persistent_memory': guest_os_desc[0].persistentMemorySupported,
                 'rec_persistent_memory': guest_os_desc[0].recommendedPersistentMemoryMB,
@@ -264,8 +264,8 @@ def get_config_option_for_guest(self):
         # Get supported hardware versions list
         support_create_list, default_config = self.get_hardware_versions(env_browser=env_browser)
         if self.params.get('get_hardware_versions'):
-            results.update({'supported_hardware_versions': support_create_list,
-                            'default_hardware_version': default_config})
+            results.update({'Supported hardware versions': support_create_list,
+                            'Default hardware version': default_config})
 
         if self.params.get('get_guest_os_ids') or self.params.get('get_config_options'):
             # Get supported guest ID list
@@ -286,9 +286,9 @@ def get_config_option_for_guest(self):
                                                                         key=hardware_version)
                 guest_os_options = vm_config_option_guest.guestOSDescriptor
                 guest_os_option_dict = self.get_config_option_recommended(guest_os_desc=guest_os_options)
-                results.update({'guest_id': guest_id[0]})
-                results.update({'hardware_version': vm_config_option_guest.version})
-                results.update({'recommended_config_options': guest_os_option_dict})
+                results.update({'Guest ID': guest_id[0]})
+                results.update({'Hardware version': vm_config_option_guest.version})
+                results.update({'Recommended config options': guest_os_option_dict})
 
         self.module.exit_json(changed=False, failed=False, instance=results)
 
@@ -312,6 +312,9 @@ def main():
             ['cluster_name', 'esxi_hostname'],
         ]
     )
+    module.deprecate(msg="Names of items in results dict will be changed from strings with spaces to strings"
+                         " joined with underlines, e.g., 'Guest fullname' will be changed to 'guest_fullname'.",
+                     version='3.0.0', collection_name="community.vmware")
     vm_config_option_guest = VmConfigOption(module)
     vm_config_option_guest.get_config_option_for_guest()
 
diff --git a/tests/integration/targets/vmware_vm_config_option/tasks/main.yml b/tests/integration/targets/vmware_vm_config_option/tasks/main.yml
index dfd8f6daf..c649c4a54 100644
--- a/tests/integration/targets/vmware_vm_config_option/tasks/main.yml
+++ b/tests/integration/targets/vmware_vm_config_option/tasks/main.yml
@@ -75,7 +75,7 @@
             datacenter: "{{ dc1 }}"
             esxi_hostname: "{{ esxi_hosts[0] }}"
             get_guest_os_ids: true
-            hardware_version: "{{ config_option_keys_1.instance.supported_hardware_versions[0] }}"
+            hardware_version: "{{ config_option_keys_1['instance']['Supported hardware versions'][0] }}"
           register: guest_ids_2
           ignore_errors: true
 
@@ -91,8 +91,7 @@
             - not guest_ids_2.failed
       when:
         - "'instance' in config_option_keys_1"
-        - "'supported_hardware_versions' in config_option_keys_1.instance"
-        - config_option_keys_1.instance.supported_hardware_versions | length != 0
+        - "'Supported hardware versions' in config_option_keys_1['instance']"
 
     # Ignore errors due to there is known issue on vSphere 7.0.x
     # https://github.com/vmware/pyvmomi/issues/915
@@ -141,7 +140,7 @@
         password: "{{ esxi_password }}"
         esxi_hostname: "{{ esxi_hosts[0] }}"
         get_guest_os_ids: true
-        hardware_version: "{{ config_option_keys_3.instance.supported_hardware_versions[2] }}"
+        hardware_version: "{{ config_option_keys_3['instance']['Supported hardware versions'][2] }}"
       register: guest_ids_3
       ignore_errors: true