diff --git a/src/ivfbuild.c b/src/ivfbuild.c
index 4604fb5..3be9391 100644
--- a/src/ivfbuild.c
+++ b/src/ivfbuild.c
@@ -145,12 +145,7 @@ SampleRows(IvfflatBuildState * buildstate)
 	{
 		BlockNumber targblock = BlockSampler_Next(&buildstate->bs);
 
-		/*
-		 * anyvisible must be false when the scan uses an MVCC snapshot
-		 * (i.e. CREATE INDEX CONCURRENTLY), otherwise PG will assert in
-		 * heapam_index_build_range_scan. Always pass false here, matching
-		 * what table_index_build_scan does internally.
-		 */
+		/* Set anyvisible to false like table_index_build_scan */
 		table_index_build_range_scan(buildstate->heap, buildstate->index, buildstate->indexInfo,
 									 false, false, false, targblock, 1, SampleCallback, (void *) buildstate, NULL);
 	}