diff --git a/api/openapi-spec/swagger.json b/api/openapi-spec/swagger.json
index ddc33b0824c..eb0525fa938 100644
--- a/api/openapi-spec/swagger.json
+++ b/api/openapi-spec/swagger.json
@@ -43326,7 +43326,7 @@
     ],
     "properties": {
      "concurrencyPolicy": {
-      "description": "ConcurrencyPolicy specifies how to treat concurrent executions of a Job.",
+      "description": "ConcurrencyPolicy specifies how to treat concurrent executions of a Job. Defaults to Allow.",
       "type": "string"
      },
      "failedJobsHistoryLimit": {
diff --git a/api/swagger-spec/batch_v2alpha1.json b/api/swagger-spec/batch_v2alpha1.json
index 5c0ef198b94..22b693c4bd5 100644
--- a/api/swagger-spec/batch_v2alpha1.json
+++ b/api/swagger-spec/batch_v2alpha1.json
@@ -2186,7 +2186,7 @@
      },
      "concurrencyPolicy": {
       "type": "string",
-      "description": "ConcurrencyPolicy specifies how to treat concurrent executions of a Job."
+      "description": "ConcurrencyPolicy specifies how to treat concurrent executions of a Job. Defaults to Allow."
      },
      "suspend": {
       "type": "boolean",
diff --git a/docs/api-reference/batch/v2alpha1/definitions.html b/docs/api-reference/batch/v2alpha1/definitions.html
index 3a9a2d59ce8..525eeb8bd30 100755
--- a/docs/api-reference/batch/v2alpha1/definitions.html
+++ b/docs/api-reference/batch/v2alpha1/definitions.html
@@ -3720,7 +3720,7 @@ Populated by the system when a graceful deletion is requested. Read-only. More i
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">concurrencyPolicy</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">ConcurrencyPolicy specifies how to treat concurrent executions of a Job.</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">ConcurrencyPolicy specifies how to treat concurrent executions of a Job. Defaults to Allow.</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">false</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">string</p></td>
 <td class="tableblock halign-left valign-top"></td>
@@ -5629,7 +5629,7 @@ Examples:<br>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2017-04-05 12:45:13 UTC
+Last updated 2017-04-10 11:51:28 UTC
 </div>
 </div>
 </body>
diff --git a/pkg/apis/batch/v2alpha1/generated.proto b/pkg/apis/batch/v2alpha1/generated.proto
index 4f51d6161ac..605dafe3875 100644
--- a/pkg/apis/batch/v2alpha1/generated.proto
+++ b/pkg/apis/batch/v2alpha1/generated.proto
@@ -72,6 +72,7 @@ message CronJobSpec {
   optional int64 startingDeadlineSeconds = 2;
 
   // ConcurrencyPolicy specifies how to treat concurrent executions of a Job.
+  // Defaults to Allow.
   // +optional
   optional string concurrencyPolicy = 3;
 
diff --git a/pkg/apis/batch/v2alpha1/types_swagger_doc_generated.go b/pkg/apis/batch/v2alpha1/types_swagger_doc_generated.go
index c0b53b8e029..dc4ff64c8e2 100644
--- a/pkg/apis/batch/v2alpha1/types_swagger_doc_generated.go
+++ b/pkg/apis/batch/v2alpha1/types_swagger_doc_generated.go
@@ -52,7 +52,7 @@ var map_CronJobSpec = map[string]string{
 	"":                           "CronJobSpec describes how the job execution will look like and when it will actually run.",
 	"schedule":                   "Schedule contains the schedule in Cron format, see https://en.wikipedia.org/wiki/Cron.",
 	"startingDeadlineSeconds":    "Optional deadline in seconds for starting the job if it misses scheduled time for any reason.  Missed jobs executions will be counted as failed ones.",
-	"concurrencyPolicy":          "ConcurrencyPolicy specifies how to treat concurrent executions of a Job.",
+	"concurrencyPolicy":          "ConcurrencyPolicy specifies how to treat concurrent executions of a Job. Defaults to Allow.",
 	"suspend":                    "Suspend flag tells the controller to suspend subsequent executions, it does not apply to already started executions.  Defaults to false.",
 	"jobTemplate":                "JobTemplate is the object that describes the job that will be created when executing a CronJob.",
 	"successfulJobsHistoryLimit": "The number of successful finished jobs to retain. This is a pointer to distinguish between explicit zero and not specified.",
diff --git a/pkg/generated/openapi/zz_generated.openapi.go b/pkg/generated/openapi/zz_generated.openapi.go
index fa4624bbf68..c72088f58b1 100644
--- a/pkg/generated/openapi/zz_generated.openapi.go
+++ b/pkg/generated/openapi/zz_generated.openapi.go
@@ -12399,7 +12399,7 @@ func GetOpenAPIDefinitions(ref openapi.ReferenceCallback) map[string]openapi.Ope
 						},
 						"concurrencyPolicy": {
 							SchemaProps: spec.SchemaProps{
-								Description: "ConcurrencyPolicy specifies how to treat concurrent executions of a Job.",
+								Description: "ConcurrencyPolicy specifies how to treat concurrent executions of a Job. Defaults to Allow.",
 								Type:        []string{"string"},
 								Format:      "",
 							},