diff --git a/src/cryptonote_core/hardfork.h b/src/cryptonote_core/hardfork.h
index 2fcc2d539..6b98b9fa1 100644
--- a/src/cryptonote_core/hardfork.h
+++ b/src/cryptonote_core/hardfork.h
@@ -47,7 +47,7 @@ namespace cryptonote
     static const uint64_t DEFAULT_ORIGINAL_VERSION_TILL_HEIGHT = 0; // <= actual height
     static const time_t DEFAULT_FORKED_TIME = 31557600; // a year in seconds
     static const time_t DEFAULT_UPDATE_TIME = 31557600 / 2;
-    static const uint64_t DEFAULT_WINDOW_SIZE = 50; // supermajority window check length
+    static const uint64_t DEFAULT_WINDOW_SIZE = 10080; // supermajority window check length - a week
     static const int DEFAULT_THRESHOLD_PERCENT = 80;
 
     /**