diff --git a/src/hnswscan.c b/src/hnswscan.c
index 3deb729..de8fad6 100644
--- a/src/hnswscan.c
+++ b/src/hnswscan.c
@@ -242,7 +242,7 @@ hnswgettuple(IndexScanDesc scan, ScanDirection dir)
 			{
 				if (pairingheap_is_empty(so->discarded))
 				{
-					ereport(NOTICE,
+					ereport(DEBUG1,
 							(errmsg("hnsw index scan exceeded work_mem after " INT64_FORMAT " tuples", so->tuples),
 							 errhint("Increase work_mem to scan more tuples.")));