diff --git a/main.py b/main.py
index e5b053b..2fcab4c 100644
--- a/main.py
+++ b/main.py
@@ -464,10 +464,11 @@ async def lifespan(_server: FastMCP) -> AsyncIterator[AppContext]:
                 ),
             )
             if test_response and test_response.embeddings:
+                embedding_values = test_response.embeddings[0].values
                 log_structured_entry(
                     "GenAI embedding validation successful",
                     "INFO",
-                    {"embedding_dimension": len(test_response.embeddings[0].values)}
+                    {"embedding_dimension": len(embedding_values) if embedding_values else 0}
                 )
             else:
                 msg = "Embedding validation returned empty response"