diff --git a/docs/source/usage_statistics.md b/docs/source/usage_statistics.md
index ad5ac395..b509341f 100644
--- a/docs/source/usage_statistics.md
+++ b/docs/source/usage_statistics.md
@@ -33,15 +33,7 @@ As of release 2.1.2 this is an example of the data collected:
   },
   "ngrok": false,
   "revision": null,
-  "tokenizer_config": {
-      "add_bos_token": null,
-      "add_eos_token": null,
-      "bos_token": "<s>",
-      "chat_template": null,
-      "completion_template": null,
-      "eos_token": "</s>",
-      "tokenizer_class": "BloomTokenizerFast"
-  },
+  "tokenizer_class": "BloomTokenizerFast",
   "validation_workers": 2,
   "waiting_served_ratio": 1.2,
   "docker_label": "latest",
diff --git a/router/src/main.rs b/router/src/main.rs
index fde9c6e3..323a8742 100644
--- a/router/src/main.rs
+++ b/router/src/main.rs
@@ -327,6 +327,7 @@ async fn main() -> Result<(), RouterError> {
         tracing::warn!("Could not find tokenizer config locally and no API specified");
         HubTokenizerConfig::default()
     });
+    let tokenizer_class = tokenizer_config.tokenizer_class.clone();
 
     let tokenizer: Option<Tokenizer> = tokenizer_filename.and_then(|filename| {
         let mut tokenizer = Tokenizer::from_file(filename).ok();
@@ -387,7 +388,7 @@ async fn main() -> Result<(), RouterError> {
     let user_agent = if !disable_usage_stats && is_docker {
         let reducded_args = usage_stats::Args::new(
             config.clone(),
-            tokenizer_config.clone(),
+            tokenizer_class,
             max_concurrent_requests,
             max_best_of,
             max_stop_sequences,
diff --git a/router/src/usage_stats.rs b/router/src/usage_stats.rs
index bac1b9d8..f49cfa9a 100644
--- a/router/src/usage_stats.rs
+++ b/router/src/usage_stats.rs
@@ -60,7 +60,7 @@ impl UsageStatsEvent {
 #[derive(Debug, Clone, Serialize)]
 pub struct Args {
     model_config: Option<Config>,
-    tokenizer_config: HubTokenizerConfig,
+    tokenizer_config: Option<String>,
     max_concurrent_requests: usize,
     max_best_of: usize,
     max_stop_sequences: usize,
@@ -86,7 +86,7 @@ pub struct Args {
 impl Args {
     pub fn new(
         model_config: Option<Config>,
-        tokenizer_config: HubTokenizerConfig,
+        tokenizer_config: Option<String>,
         max_concurrent_requests: usize,
         max_best_of: usize,
         max_stop_sequences: usize,