diff --git a/example/run_all.py b/example/run_all.py
index 68991aa..7cf530a 100644
--- a/example/run_all.py
+++ b/example/run_all.py
@@ -38,7 +38,11 @@ def main():
     with open(config_path, "r", encoding="utf-8") as f:
         cfg = json.load(f)
 
-    config_path = resolve_path(base_dir, config_path)
+    # Resolve config path without duplicating base_dir on Windows when user passes example/config.json
+    if config_path.exists():
+        config_path = resolve_path(config_path.parent, config_path)
+    else:
+        config_path = resolve_path(base_dir, config_path)
     timesteps = cfg.get("timesteps", 200)
     seq_len = cfg.get("sample_seq_len", cfg.get("seq_len", 64))
     batch_size = cfg.get("sample_batch_size", cfg.get("batch_size", 2))