diff --git a/restdocs-openapi/src/main/kotlin/com/epages/restdocs/openapi/DescriptorValidator.kt b/restdocs-openapi/src/main/kotlin/com/epages/restdocs/openapi/DescriptorValidator.kt
index d65434bc..e23b3185 100644
--- a/restdocs-openapi/src/main/kotlin/com/epages/restdocs/openapi/DescriptorValidator.kt
+++ b/restdocs-openapi/src/main/kotlin/com/epages/restdocs/openapi/DescriptorValidator.kt
@@ -9,6 +9,7 @@ import org.springframework.restdocs.hypermedia.LinkDescriptor
 import org.springframework.restdocs.hypermedia.LinksSnippet
 import org.springframework.restdocs.operation.Operation
 import org.springframework.restdocs.payload.FieldDescriptor
+import org.springframework.restdocs.payload.JsonFieldType
 import org.springframework.restdocs.payload.RequestFieldsSnippet
 import org.springframework.restdocs.payload.ResponseFieldsSnippet
 import org.springframework.restdocs.request.ParameterDescriptor
@@ -131,6 +132,8 @@ internal object DescriptorValidator {
                     fieldsModel
                         .firstOrNull { d.path == it["path"] }
                         ?.get("type")
+                        ?.let { it as String }
+                        ?.let { JsonFieldType.valueOf(it.toUpperCase()) }
                         ?.let { d.type(it) }
                 }
             }
diff --git a/restdocs-openapi/src/test/kotlin/com/epages/restdocs/openapi/ResourceSnippetTest.kt b/restdocs-openapi/src/test/kotlin/com/epages/restdocs/openapi/ResourceSnippetTest.kt
index 99139bfc..9da2bb37 100644
--- a/restdocs-openapi/src/test/kotlin/com/epages/restdocs/openapi/ResourceSnippetTest.kt
+++ b/restdocs-openapi/src/test/kotlin/com/epages/restdocs/openapi/ResourceSnippetTest.kt
@@ -18,6 +18,7 @@ import org.springframework.http.MediaType.APPLICATION_JSON_VALUE
 import org.springframework.restdocs.generate.RestDocumentationGenerator.ATTRIBUTE_NAME_URL_TEMPLATE
 import org.springframework.restdocs.headers.HeaderDocumentation
 import org.springframework.restdocs.operation.Operation
+import org.springframework.restdocs.payload.JsonFieldType
 import org.springframework.restdocs.payload.PayloadDocumentation.fieldWithPath
 import java.io.File
 import java.io.IOException
@@ -137,7 +138,12 @@ class ResourceSnippetTest(private val temporaryFolder: TemporaryFolder) {
         then(resourceSnippetJson.read<String>("request.example")).isEqualTo(operation.request.contentAsString)
         then(resourceSnippetJson.read<List<*>>("request.requestFields")).hasSize(1)
         then(resourceSnippetJson.read<String>("request.requestFields[0].description")).isNotEmpty()
+        with(resourceSnippetJson.read<String>("request.requestFields[0].type")) {
+            then(this).isNotEmpty()
+            then(JsonFieldType.valueOf(this)).isEqualTo(JsonFieldType.STRING)
+        }
         then(resourceSnippetJson.read<String>("request.requestFields[0].type")).isNotEmpty()
+        then(JsonFieldType.valueOf(resourceSnippetJson.read("request.requestFields[0].type"))).isNotNull()
         then(resourceSnippetJson.read<Boolean>("request.requestFields[0].optional")).isFalse()
         then(resourceSnippetJson.read<Boolean>("request.requestFields[0].ignored")).isFalse()
     }