diff --git a/api/core/workflow/nodes/llm/llm_node.py b/api/core/workflow/nodes/llm/llm_node.py
index fff6e8e77a..21371488d4 100644
--- a/api/core/workflow/nodes/llm/llm_node.py
+++ b/api/core/workflow/nodes/llm/llm_node.py
@@ -221,8 +221,11 @@ class LLMNode(BaseNode):
         :param variable_pool: variable pool
         :return:
         """
-        # if not node_data.context.enabled:
-        #     return None
+        if not node_data.context.enabled:
+            return None
+
+        if not node_data.context.variable_selector:
+            return None
 
         context_value = variable_pool.get_variable_value(node_data.context.variable_selector)
         if context_value: