diff --git a/public.openapi.json b/public.openapi.json
index a07c4c6..6cf9b6a 100644
--- a/public.openapi.json
+++ b/public.openapi.json
@@ -247,7 +247,7 @@
           "description": "The uuid that identify the domain.",
           "required": true,
           "schema": {
-            "type": "string"
+            "$ref": "#/components/schemas/DomainId"
           },
           "examples": {
             "a random uuid generated by 'uuid' command": {
@@ -285,7 +285,7 @@
           "description": "uuid for the IPA domain.",
           "required": true,
           "schema": {
-            "type": "string"
+            "$ref": "#/components/schemas/DomainId"
           },
           "examples": {
             "uuid": {
@@ -361,7 +361,7 @@
           "description": "uuid for the IPA domain.",
           "required": true,
           "schema": {
-            "type": "string"
+            "$ref": "#/components/schemas/DomainId"
           },
           "examples": {
             "uuid": {
diff --git a/public.openapi.yaml b/public.openapi.yaml
index 6b5458b..28ed05a 100644
--- a/public.openapi.yaml
+++ b/public.openapi.yaml
@@ -161,7 +161,7 @@ paths:
               description: The uuid that identify the domain.
               required: true
               schema:
-                  type: string
+                  $ref: '#/components/schemas/DomainId'
               examples:
                   a random uuid generated by 'uuid' command:
                       value: '"2e8ce5a6-b370-11ed-9330-482ae3863d30"'
@@ -186,7 +186,7 @@ paths:
               description: uuid for the IPA domain.
               required: true
               schema:
-                  type: string
+                  $ref: '#/components/schemas/DomainId'
               examples:
                   uuid:
                       value: 08363cd4-bea8-11ed-b83f-482ae3863d30
@@ -237,7 +237,7 @@ paths:
               description: uuid for the IPA domain.
               required: true
               schema:
-                  type: string
+                  $ref: '#/components/schemas/DomainId'
               examples:
                   uuid:
                       value: 08363cd4-bea8-11ed-b83f-482ae3863d30