diff --git a/pgxn/neon/file_cache.c b/pgxn/neon/file_cache.c
index c079b5fdd0..27a2397e63 100644
--- a/pgxn/neon/file_cache.c
+++ b/pgxn/neon/file_cache.c
@@ -707,7 +707,7 @@ lfc_prewarm(FileCacheState* fcs, uint32 worker_id, uint32 n_workers)
 	}
 
 	fcs_chunk_size_log = fcs->chunk_size_log;
-	if (fcs_chunk_size_log > MAX_BLOCKS_PER_CHUNK)
+	if (fcs_chunk_size_log > MAX_BLOCKS_PER_CHUNK_LOG)
 	{
 		elog(ERROR, "LFC: Invalid chunk size log: %u", fcs->chunk_size_log);
 	}