diff --git a/oas_docs/output/kibana.yaml b/oas_docs/output/kibana.yaml
index 964666cfd0d87..c09b1b21776b6 100644
--- a/oas_docs/output/kibana.yaml
+++ b/oas_docs/output/kibana.yaml
@@ -63068,7 +63068,7 @@ paths:
                     ]
               schema:
                 items:
-                  - $ref: '#/components/schemas/Synthetics_getParameterResponse'
+                  $ref: '#/components/schemas/Synthetics_getParameterResponse'
                 type: array
           description: A successful response.
       summary: Get parameters
diff --git a/src/platform/packages/private/kbn-validate-oas/oas_error_baseline.json b/src/platform/packages/private/kbn-validate-oas/oas_error_baseline.json
index d4b83b304fd56..c7b7c4a28e6df 100644
--- a/src/platform/packages/private/kbn-validate-oas/oas_error_baseline.json
+++ b/src/platform/packages/private/kbn-validate-oas/oas_error_baseline.json
@@ -1,4 +1,4 @@
 {
-  "./oas_docs/output/kibana.yaml": 314,
+  "./oas_docs/output/kibana.yaml": 312,
   "./oas_docs/output/kibana.serverless.yaml": 294
 }
\ No newline at end of file
diff --git a/x-pack/solutions/observability/plugins/synthetics/docs/openapi/synthetic_apis.yaml b/x-pack/solutions/observability/plugins/synthetics/docs/openapi/synthetic_apis.yaml
index 348f7176c8cdd..133c6113471fa 100644
--- a/x-pack/solutions/observability/plugins/synthetics/docs/openapi/synthetic_apis.yaml
+++ b/x-pack/solutions/observability/plugins/synthetics/docs/openapi/synthetic_apis.yaml
@@ -522,7 +522,7 @@ paths:
               schema:
                 type: array
                 items:
-                  - $ref: "#/components/schemas/getParameterResponse"
+                  $ref: "#/components/schemas/getParameterResponse"
               examples:
                 getParametersResponseExample1:
                   summary: Read access