diff --git a/api/onnx_web/device_pool.py b/api/onnx_web/device_pool.py
index ecde3877..936065eb 100644
--- a/api/onnx_web/device_pool.py
+++ b/api/onnx_web/device_pool.py
@@ -101,11 +101,11 @@ class DevicePoolExecutor:
         device_count = len(devices)
         if pool is None:
             logger.info(
-                'creating thread pool executor for %s devices: %s', device_count, devices)
+                'creating thread pool executor for %s devices: %s', device_count, [d.device for d in devices])
             self.pool = ThreadPoolExecutor(device_count)
         else:
             logger.info('using existing pool for %s devices: %s',
-                        device_count, devices)
+                        device_count, [d.device for d in devices])
             self.pool = pool
 
     def cancel(self, key: str) -> bool:
diff --git a/api/onnx_web/serve.py b/api/onnx_web/serve.py
index 249c4ca4..2048f54f 100644
--- a/api/onnx_web/serve.py
+++ b/api/onnx_web/serve.py
@@ -322,7 +322,7 @@ def load_platforms():
             else:
                 available_platforms.append(DeviceParams(potential, platform_providers[potential]))
 
-    logger.info('available acceleration platforms: %s', available_platforms)
+    logger.info('available acceleration platforms: %s', ', '.join([str(p) for p in available_platforms]))
 
 
 context = ServerContext.from_environ()