diff --git a/web/yaamp/core/backend/system.php b/web/yaamp/core/backend/system.php
index 8531741..84c132d 100644
--- a/web/yaamp/core/backend/system.php
+++ b/web/yaamp/core/backend/system.php
@@ -47,7 +47,7 @@ function BackendQuickClean()
function marketHistoryPrune($symbol="")
{
$delay2M = settings_get("history_prune_delay", time() - 61*24*60*60); // 2 months
- dborun("DELETE FROM market_history WHERE time < $delay2M");
+ dborun("DELETE FROM market_history WHERE time < ".intval($delay2M));
// Prune records older than 1 week, one max per hour
$delay7D = time() - 7*24*60*60;
diff --git a/web/yaamp/modules/site/coin.php b/web/yaamp/modules/site/coin.php
index 69cc25a..746f39f 100644
--- a/web/yaamp/modules/site/coin.php
+++ b/web/yaamp/modules/site/coin.php
@@ -55,8 +55,6 @@ echo <<