diff --git a/src/script/api/script_controller.cpp b/src/script/api/script_controller.cpp
--- a/src/script/api/script_controller.cpp
+++ b/src/script/api/script_controller.cpp
@@ -46,7 +46,7 @@
 
 /* static */ bool ScriptController::Break(const char* message)
 {
-	if (!_network_dedicated || !_settings_client.gui.ai_developer_tools) return false;
+	if (_network_dedicated || !_settings_client.gui.ai_developer_tools) return false;
 
 	ScriptObject::GetActiveInstance()->Pause();