diff --git a/src/main.h b/src/main.h
index 5bffee5a5..1f54a05cb 100644
--- a/src/main.h
+++ b/src/main.h
@@ -207,7 +207,7 @@ extern uint64_t nPruneTarget;
 /** Block files containing a block-height within MIN_BLOCKS_TO_KEEP of chainActive.Tip() will not be pruned. */
 static const unsigned int MIN_BLOCKS_TO_KEEP = 500;
 
-static const signed int DEFAULT_CHECKBLOCKS = 50;
+static const signed int DEFAULT_CHECKBLOCKS = 500;
 static const unsigned int DEFAULT_CHECKLEVEL = 3;
 
 // Require that user allocate at least 550MB for block & undo files (blk???.dat and rev???.dat)