diff --git a/plugins/modules/loadbalancer.py b/plugins/modules/loadbalancer.py
index 57d43dc2..4a220b73 100644
--- a/plugins/modules/loadbalancer.py
+++ b/plugins/modules/loadbalancer.py
@@ -125,6 +125,7 @@ options:
                     accessible from.
     elements: dict
     type: list
+    default: []
   wait:
     description:
       - If the module should wait for the load balancer to be created or
diff --git a/plugins/modules/routers_info.py b/plugins/modules/routers_info.py
index 4683e9b1..a83fc7c4 100644
--- a/plugins/modules/routers_info.py
+++ b/plugins/modules/routers_info.py
@@ -23,6 +23,7 @@ options:
           this dictionary may be additional dictionaries.
      required: false
      type: dict
+     default: {}
      suboptions:
        project_id:
          description:
diff --git a/plugins/modules/security_group.py b/plugins/modules/security_group.py
index 01173f7f..43732094 100644
--- a/plugins/modules/security_group.py
+++ b/plugins/modules/security_group.py
@@ -23,6 +23,7 @@ options:
      description:
         - Long description of the purpose of the security group
      type: str
+     default: ''
    state:
      description:
        - Should the resource be present or absent.
diff --git a/plugins/modules/server.py b/plugins/modules/server.py
index 8bb1e3e0..5cbfd988 100644
--- a/plugins/modules/server.py
+++ b/plugins/modules/server.py
@@ -153,6 +153,7 @@ options:
         - This server attribute cannot be updated.
       type: list
       elements: raw
+      default: []
       suboptions:
         tag:
           description:
diff --git a/plugins/modules/stack.py b/plugins/modules/stack.py
index 1ce6d256..638b1170 100644
--- a/plugins/modules/stack.py
+++ b/plugins/modules/stack.py
@@ -34,6 +34,7 @@ options:
       description:
         - Dictionary of parameters for the stack creation
       type: dict
+      default: {}
     rollback:
       description:
         - Rollback stack creation