diff --git a/src/llmtuner/data/preprocess.py b/src/llmtuner/data/preprocess.py
index 6f8bf7e8..8501d473 100644
--- a/src/llmtuner/data/preprocess.py
+++ b/src/llmtuner/data/preprocess.py
@@ -112,9 +112,9 @@ def preprocess_packed_supervised_dataset(
             input_ids += source_ids + target_ids
             labels += source_mask + target_ids
 
-    if template.efficient_eos:
-        input_ids += [tokenizer.eos_token_id]
-        labels += [tokenizer.eos_token_id]
+        if template.efficient_eos:
+            input_ids += [tokenizer.eos_token_id]
+            labels += [tokenizer.eos_token_id]
 
     total_length = len(input_ids)
     block_size = data_args.cutoff_len
diff --git a/src/llmtuner/webui/locales.py b/src/llmtuner/webui/locales.py
index a55794cd..af38aaef 100644
--- a/src/llmtuner/webui/locales.py
+++ b/src/llmtuner/webui/locales.py
@@ -477,7 +477,7 @@ LOCALES = {
         },
         "zh": {
             "label": "序列打包",
-            "info": "在指令监督微调阶段将序列打包为相同长度的样本。",
+            "info": "在指令监督微调时将序列打包为等长样本。",
         },
     },
     "upcast_layernorm": {