diff --git a/serena_config.template.yml b/serena_config.template.yml
index 13cffd2..99514c8 100644
--- a/serena_config.template.yml
+++ b/serena_config.template.yml
@@ -28,7 +28,7 @@ projects:
 # previous instances. This leads to multiple log windows being opened, and only the last
 # window being updated. Since we can't control how agno or Claude Desktop start Serena,
 # we have to live with this limitation for now.
-gui_log_window: True
+gui_log_window: False
 
 # minimum log level for the GUI log window (10 = debug, 20 = info, 30 = warning, 40 = error)
 gui_log_level: 20
diff --git a/src/serena/agent.py b/src/serena/agent.py
index aaccbb9..c4a3eed 100644
--- a/src/serena/agent.py
+++ b/src/serena/agent.py
@@ -107,7 +107,7 @@ class SerenaConfig:
                 raise ValueError(f"Error loading project configuration from {project_config_path}: {e}") from e
         self.project_names = list(self.projects.keys())
 
-        self.gui_log_window_enabled = config_yaml.get("gui_log_window", True)
+        self.gui_log_window_enabled = config_yaml.get("gui_log_window", False)
         self.gui_log_window_level = config_yaml.get("gui_log_level", logging.INFO)
         self.enable_project_activation = config_yaml.get("enable_project_activation", True)