diff --git a/app/code/Magento/PageBuilder/etc/adminhtml/di.xml b/app/code/Magento/PageBuilder/etc/adminhtml/di.xml
index de248a19513..47396b2a294 100644
--- a/app/code/Magento/PageBuilder/etc/adminhtml/di.xml
+++ b/app/code/Magento/PageBuilder/etc/adminhtml/di.xml
@@ -59,7 +59,7 @@
         <arguments>
             <argument name="additionalSettings" xsi:type="array">
                 <item name="fixed_toolbar_container" xsi:type="string">.pagebuilder-content-type</item>
-                <item name="fontsize_formats" xsi:type="string">10px 12px 14px 16px 18px 20px 24px 26px 28px 32px 34px 36px 38px 40px 42px 48px 52px 56px 64px 72px</item>
+                <item name="font_size_formats" xsi:type="string">10px 12px 14px 16px 18px 20px 24px 26px 28px 32px 34px 36px 38px 40px 42px 48px 52px 56px 64px 72px</item>
                 <item name="lineheight_formats" xsi:type="string">10px 12px 14px 16px 18px 20px 24px 26px 28px 32px 34px 36px 38px 40px 42px 48px 52px 56px 64px 72px</item>
                 <item name="style_formats" xsi:type="array">
                     <item name="paragraph" xsi:type="array">