diff --git a/reditools/tools/analyze/main.py b/reditools/tools/analyze/main.py
index fbe7fcb..69fb1ed 100644
--- a/reditools/tools/analyze/main.py
+++ b/reditools/tools/analyze/main.py
@@ -104,7 +104,7 @@ def analyze(
                 f"But there are only {len(temp_file_manager)} genomic "
                 "range(s). Consider change the value of --window\n"
             )
-        options.threads = len(temp_file_manager)
+            options.threads = len(temp_file_manager)
 
         if not run_pool(options, temp_file_manager):
             return False