diff --git a/python/gtsam/examples/SFMExample_bal.py b/python/gtsam/examples/SFMExample_bal.py
index eda143011..b5701669e 100644
--- a/python/gtsam/examples/SFMExample_bal.py
+++ b/python/gtsam/examples/SFMExample_bal.py
@@ -97,7 +97,7 @@ def run(args):
     except Exception as e:
         logging.exception("LM Optimization failed")
         return
-
+    # Error drops from 2764.22 to 0.046
     logging.info(f"final error: {graph.error(result)}")