diff --git a/api/src/Preferences.php b/api/src/Preferences.php
index bcaedee84b..748bd19f9b 100644
--- a/api/src/Preferences.php
+++ b/api/src/Preferences.php
@@ -891,8 +891,13 @@ class Preferences
 			foreach($prefs as $app => $value)
 			{
 				// check if app preferences have changed, if not no need to save them
-				if ($old_prefs && !array_diff_assoc($old_prefs[$app] ?? [], $value)) continue;
-
+				// we use two seemingly identical conditions (== and !array_diff_assoc()), as both are necessary
+				// to handle values like "" and "0" correctly (not skip updating the prefs)
+				if (!empty($old_prefs[$app]) && $old_prefs[$app] == $value &&
+					!array_diff_assoc($old_prefs[$app] ?? [], $value))
+				{
+					continue;
+				}
 				if (!$changed++) $this->db->transaction_begin();
 
 				if (!is_array($value) || !$value)