diff --git a/src/core/plugins/json-schema-2020-12-samples/fn/main.js b/src/core/plugins/json-schema-2020-12-samples/fn/main.js
index ced45993920..a0ef02c87a0 100644
--- a/src/core/plugins/json-schema-2020-12-samples/fn/main.js
+++ b/src/core/plugins/json-schema-2020-12-samples/fn/main.js
@@ -148,7 +148,31 @@ export const sampleFromSchemaGeneric = (
             const propSchema = typeCast(props[propName])
             const propSchemaType = getType(propSchema)
             const attrName = props[propName].xml.name || propName
-            _attr[attrName] = typeMap[propSchemaType](propSchema)
+
+            if (propSchemaType === "array") {
+              const arraySample = sampleFromSchemaGeneric(
+                props[propName],
+                config,
+                overrideE,
+                false
+              )
+              _attr[attrName] = arraySample
+                .map((item) => {
+                  if (isPlainObject(item)) {
+                    return "UnknownTypeObject"
+                  }
+                  if (Array.isArray(item)) {
+                    return "UnknownTypeArray"
+                  }
+                  return item
+                })
+                .join(" ")
+            } else {
+              _attr[attrName] =
+                propSchemaType === "object"
+                  ? "UnknownTypeObject"
+                  : typeMap[propSchemaType](propSchema)
+            }
           }
 
           return
diff --git a/src/core/plugins/json-schema-2020-12-samples/fn/types/array.js b/src/core/plugins/json-schema-2020-12-samples/fn/types/array.js
index babaf619d55..4c39e4f7c80 100644
--- a/src/core/plugins/json-schema-2020-12-samples/fn/types/array.js
+++ b/src/core/plugins/json-schema-2020-12-samples/fn/types/array.js
@@ -45,7 +45,7 @@ export const applyArrayConstraints = (array, constraints = {}) => {
   return constrainedArray
 }
 
-const arrayType = (schema, { sample }) => {
+const arrayType = (schema, { sample = [] } = {}) => {
   return applyArrayConstraints(sample, schema)
 }
 
diff --git a/test/unit/core/plugins/json-schema-2020-12-samples/fn.js b/test/unit/core/plugins/json-schema-2020-12-samples/fn.js
index 1c5a749d1be..8eb34470742 100644
--- a/test/unit/core/plugins/json-schema-2020-12-samples/fn.js
+++ b/test/unit/core/plugins/json-schema-2020-12-samples/fn.js
@@ -2954,6 +2954,80 @@ describe("createXMLExample", function () {
 
     expect(sut(definition)).toEqual(expected)
   })
+
+  it("should handle object properties of type `array` as an attribute", () => {
+    const definition = {
+      type: "object",
+      xml: {
+        name: "test",
+      },
+      properties: {
+        arrayOfStrings: {
+          type: "array",
+          items: {
+            type: "string",
+          },
+          xml: {
+            attribute: true,
+          },
+        },
+        arrayOfArrays: {
+          type: "array",
+          items: {
+            type: "array",
+          },
+          minItems: 3,
+          xml: {
+            attribute: true,
+          },
+        },
+        arrayOfContainsObject: {
+          type: "array",
+          contains: {
+            type: "object",
+          },
+          minContains: 3,
+          xml: {
+            attribute: true,
+          },
+        },
+      },
+    }
+
+    const expected = `<?xml version="1.0" encoding="UTF-8"?>
+<test arrayOfStrings="string" arrayOfArrays="UnknownTypeArray UnknownTypeArray UnknownTypeArray" arrayOfContainsObject="UnknownTypeObject UnknownTypeObject UnknownTypeObject">
+</test>`
+
+    expect(sut(definition)).toEqual(expected)
+  })
+
+  it("should handle object properties of type `object` as an attribute", () => {
+    const definition = {
+      type: "object",
+      xml: {
+        name: "test",
+      },
+      properties: {
+        object: {
+          type: "object",
+          properties: {
+            string: {
+              type: "string",
+            },
+          },
+          xml: {
+            attribute: true,
+          },
+        },
+      },
+    }
+
+    const expected = `<?xml version="1.0" encoding="UTF-8"?>
+<test object="UnknownTypeObject">
+</test>`
+
+    expect(sut(definition)).toEqual(expected)
+  })
 })
 
 describe("memoizedSampleFromSchema", () => {