diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c5a416046a..62193b6b99f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 - Fixed an error that could occur when updating to Craft 5. ([#14067](https://github.com/craftcms/cms/issues/14067))
 - Fixed a bug where various features weren’t working. ([#14062](https://github.com/craftcms/cms/pull/14062))
 - Fixed a bug where Matrix and Addresses fields were overriding each others’ view states. ([#13976](https://github.com/craftcms/cms/pull/13976))
+- Fixed an error that could occur when updating to Craft 5, if any Matrix fields hadn’t been saved since before Craft 3.2. ([#14061](https://github.com/craftcms/cms/issues/14061))
 
 ## 5.0.0-alpha.2 - 2023-12-15
 
diff --git a/src/fields/Matrix.php b/src/fields/Matrix.php
index 44e57cdd423..241530b2f7a 100644
--- a/src/fields/Matrix.php
+++ b/src/fields/Matrix.php
@@ -270,9 +270,9 @@ public function __construct($config = [])
         // Config normalization
         unset($config['contentTable']);
 
-        if (array_key_exists('localizeEntries', $config)) {
-            $config['propagationMethod'] = $config['localizeEntries'] ? 'none' : 'all';
-            unset($config['localizeEntries']);
+        if (array_key_exists('localizeBlocks', $config)) {
+            $config['propagationMethod'] = $config['localizeBlocks'] ? 'none' : 'all';
+            unset($config['localizeBlocks']);
         }
 
         if (isset($config['entryTypes']) && $config['entryTypes'] === '') {