diff --git a/.changelog/6380.txt b/.changelog/6380.txt
new file mode 100644
index 00000000000..8b290056ee9
--- /dev/null
+++ b/.changelog/6380.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+dataflow: fixed bug where permadiff would show on `google_dataflow_job.additional_experiments`
+```
diff --git a/google/resource_dataflow_job.go b/google/resource_dataflow_job.go
index 6d542e022a6..be5bff54e8a 100644
--- a/google/resource_dataflow_job.go
+++ b/google/resource_dataflow_job.go
@@ -192,6 +192,7 @@ func resourceDataflowJob() *schema.Resource {
 			"additional_experiments": {
 				Type:        schema.TypeSet,
 				Optional:    true,
+				Computed:    true,
 				Description: `List of experiments that should be used by the job. An example value is ["enable_stackdriver_agent_metrics"].`,
 				Elem: &schema.Schema{
 					Type: schema.TypeString,