diff --git a/internal/services/network/network_watcher_flow_log_resource.go b/internal/services/network/network_watcher_flow_log_resource.go
index b1af4492b3bc..d6d1fb5512ce 100644
--- a/internal/services/network/network_watcher_flow_log_resource.go
+++ b/internal/services/network/network_watcher_flow_log_resource.go
@@ -64,7 +64,7 @@ func resourceNetworkWatcherFlowLog() *pluginsdk.Resource {
 
 			"resource_group_name": commonschema.ResourceGroupName(),
 
-			//lintignore: S013
+			// lintignore: S013
 			"name": {
 				Type:         pluginsdk.TypeString,
 				Required:     true,
@@ -330,6 +330,10 @@ func resourceNetworkWatcherFlowLogUpdate(d *pluginsdk.ResourceData, meta interfa
 		}
 	}
 
+	if d.HasChange("tags") {
+		payload.Tags = tags.Expand(d.Get("tags").(map[string]interface{}))
+	}
+
 	if err := client.CreateOrUpdateThenPoll(ctx, *id, *payload); err != nil {
 		return fmt.Errorf("updating %s: %+v", id, err)
 	}