diff --git a/docs/concepts/knowledge.mdx b/docs/concepts/knowledge.mdx
index b5827551a..13a875409 100644
--- a/docs/concepts/knowledge.mdx
+++ b/docs/concepts/knowledge.mdx
@@ -460,12 +460,12 @@ class SpaceNewsKnowledgeSource(BaseKnowledgeSource):
             data = response.json()
             articles = data.get('results', [])
 
-            formatted_data = self._format_articles(articles)
+            formatted_data = self.validate_content(articles)
             return {self.api_endpoint: formatted_data}
         except Exception as e:
             raise ValueError(f"Failed to fetch space news: {str(e)}")
 
-    def _format_articles(self, articles: list) -> str:
+    def validate_content(self, articles: list) -> str:
         """Format articles into readable text."""
         formatted = "Space News Articles:\n\n"
         for article in articles: