diff --git a/backend.php b/backend.php
index 7781828a7..c0b20b1db 100644
--- a/backend.php
+++ b/backend.php
@@ -825,6 +825,9 @@
 			if (strtoupper($purge_intl) == "DEFAULT")
 				$purge_intl = 0;
 
+			if (strtoupper($purge_intl) == "DISABLED")
+				$purge_intl = -1;
+
 			$result = db_query($link, "UPDATE ttrss_feeds SET 
 				title = '$feed_title', feed_url = '$feed_link',
 				update_interval = '$upd_intl',
@@ -958,6 +961,9 @@
 				if ($line["purge_interval"] == "0")
 					$line["purge_interval"] = "Default";
 
+				if ($line["purge_interval"] < 0)
+					$line["purge_interval"] = "Disabled";
+
 				print "<td><a href=\"javascript:editFeed($feed_id);\">" . 
 					$line["purge_interval"] . "</a></td>";
 
@@ -977,6 +983,9 @@
 				if ($line["purge_interval"] == "0")
 					$line["purge_interval"] = "Default";
 
+				if ($line["purge_interval"] < 0)
+					$line["purge_interval"] = "Disabled";
+
 				print "<td>" . $line["purge_interval"] . "</td>";
 
 			} else {
diff --git a/functions.php b/functions.php
index 4ab9ac7df..7d603e9cb 100644
--- a/functions.php
+++ b/functions.php
@@ -14,7 +14,7 @@
 
 			if ($purge_interval == 0) $purge_interval = PURGE_OLD_DAYS;
 
-			if ($purge_interval != 0) {
+			if ($purge_interval > 0) {
 
 				if (DB_TYPE == "pgsql") {
 					db_query($link, "DELETE FROM ttrss_entries WHERE
diff --git a/prefs.js b/prefs.js
index 5c6f7a7f6..b9973fd2e 100644
--- a/prefs.js
+++ b/prefs.js
@@ -466,7 +466,7 @@ function feedEditSave() {
 
 //	notify("Saving feed.");
 
-	if (upd_intl < 0) {
+/*	if (upd_intl < 0) {
 		notify("Update interval must be &gt;= 0 (0 = default)");
 		return;
 	}
@@ -474,7 +474,7 @@ function feedEditSave() {
 	if (purge_intl < 0) {
 		notify("Purge days must be &gt;= 0 (0 = default)");
 		return;
-	}
+	} */
 
 	if (link.length == 0) {
 		notify("Feed link cannot be blank.");