diff --git a/misc/acrn-config/config_app/templates/scenario.html b/misc/acrn-config/config_app/templates/scenario.html
index a8ae3a94a..f846526e5 100644
--- a/misc/acrn-config/config_app/templates/scenario.html
+++ b/misc/acrn-config/config_app/templates/scenario.html
@@ -51,6 +51,7 @@ the source files will be generated into default path and overwirte the previous
                     <div class="dropdown col-sm-6">
                         <select class="selectpicker" data-width="auto" id="add_vm_type">
                             <option value="PRE_STD_VM">PRE_STD_VM</option>
+                            <option value="PRE_RT_VM">PRE_RT_VM</option>
                             <option value="SAFETY_VM">SAFETY_VM</option>
                             <option value="SOS_VM">SOS_VM</option>
                             <option value="POST_STD_VM">POST_STD_VM</option>
diff --git a/misc/acrn-config/config_app/views.py b/misc/acrn-config/config_app/views.py
index 3e756e9bd..6f97b0256 100644
--- a/misc/acrn-config/config_app/views.py
+++ b/misc/acrn-config/config_app/views.py
@@ -1086,7 +1086,7 @@ def assign_vm_id(scenario_config):
         if vm.tag == 'vm':
             for item in vm.getchildren():
                 if item.tag == 'vm_type':
-                    if item.text in ['PRE_STD_VM', 'SAFETY_VM']:
+                    if item.text in ['PRE_STD_VM', 'SAFETY_VM', 'PRE_RT_VM']:
                         pre_launched_vm_num += 1
                     elif item.text in ['SOS_VM']:
                         sos_vm_num += 1
@@ -1100,7 +1100,7 @@ def assign_vm_id(scenario_config):
         if vm.tag == 'vm':
             for item in vm.getchildren():
                 if item.tag == 'vm_type':
-                    if item.text in ['PRE_STD_VM', 'SAFETY_VM']:
+                    if item.text in ['PRE_STD_VM', 'SAFETY_VM', 'PRE_RT_VM']:
                         vm.attrib['id'] = str(pre_launched_vm_index)
                         pre_launched_vm_index += 1
                     elif item.text in ['SOS_VM']: