diff --git a/shadowsocks/local.py b/shadowsocks/local.py
index e7bf48d..5aeee3b 100755
--- a/shadowsocks/local.py
+++ b/shadowsocks/local.py
@@ -68,8 +68,9 @@ def main():
         loop.run()
     except (KeyboardInterrupt, IOError, OSError) as e:
         logging.error(e)
-        import traceback
-        traceback.print_exc()
+        if config['verbose']:
+            import traceback
+            traceback.print_exc()
         os._exit(1)
 
 if __name__ == '__main__':
diff --git a/shadowsocks/server.py b/shadowsocks/server.py
index c896a25..0ad46fb 100755
--- a/shadowsocks/server.py
+++ b/shadowsocks/server.py
@@ -79,8 +79,9 @@ def main():
             loop.run()
         except (KeyboardInterrupt, IOError, OSError) as e:
             logging.error(e)
-            import traceback
-            traceback.print_exc()
+            if config['verbose']:
+                import traceback
+                traceback.print_exc()
             os._exit(1)
 
     if int(config['workers']) > 1: