diff --git a/classes/debug.php b/classes/debug.php
index 21b823c52..c62f0c9f5 100644
--- a/classes/debug.php
+++ b/classes/debug.php
@@ -1,5 +1,6 @@
 <?php
 class Debug {
+	public static $LOG_DISABLED = -1;
     public static $LOG_NORMAL = 0;
     public static $LOG_VERBOSE = 1;
     public static $LOG_EXTENDED = 2;
@@ -9,7 +10,7 @@ class Debug {
     private static $logfile = false;
     private static $loglevel = 0;
 
-    public static function set_logfile($logfile) {
+	public static function set_logfile($logfile) {
         Debug::$logfile = $logfile;
     }
 
diff --git a/update.php b/update.php
index 17eafe126..cddad0e8f 100755
--- a/update.php
+++ b/update.php
@@ -117,7 +117,6 @@
 	}
 
 	Debug::set_enabled(true);
-	Debug::set_quiet(isset($options['quiet']));
 
 	if (isset($options["log-level"])) {
 	    Debug::set_loglevel((int)$options["log-level"]);
@@ -126,6 +125,11 @@
 	if (isset($options["log"])) {
 		Debug::set_logfile($options["log"]);
         Debug::log("Logging to " . $options["log"]);
+		Debug::set_quiet(isset($options['quiet']));
+    } else {
+	    if (isset($options['quiet'])) {
+			Debug::set_loglevel(Debug::$LOG_DISABLED);
+        }
     }
 
 	if (!isset($options["daemon"])) {
diff --git a/update_daemon2.php b/update_daemon2.php
index 007d6286f..8d36db5f3 100755
--- a/update_daemon2.php
+++ b/update_daemon2.php
@@ -153,7 +153,6 @@
 	}
 
     Debug::set_enabled(true);
-    Debug::set_quiet(isset($options['quiet']));
 
     if (isset($options["log-level"])) {
         Debug::set_loglevel((int)$options["log-level"]);
@@ -162,6 +161,11 @@
     if (isset($options["log"])) {
         Debug::set_logfile($options["log"]);
         Debug::log("Logging to " . $options["log"]);
+        Debug::set_quiet(isset($options['quiet']));
+    } else {
+        if (isset($options['quiet'])) {
+            Debug::set_loglevel(Debug::$LOG_DISABLED);
+        }
     }
 
 	if (isset($options["tasks"])) {