diff --git a/ot_fullscrape.c b/ot_fullscrape.c
index 8d4797a..3c9540d 100644
--- a/ot_fullscrape.c
+++ b/ot_fullscrape.c
@@ -18,7 +18,7 @@
    Full scrapes usually are huge and one does not want to
    allocate more memory. So lets get them in 1M units
 */
-#define OT_SCRAPE_CHUNK_SIZE (256*1024)
+#define OT_SCRAPE_CHUNK_SIZE (512*1024)
 
 /* "d8:completei%zde10:downloadedi%zde10:incompletei%zdee" */
 #define OT_FULLSCRAPE_MAXENTRYLEN 100