diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 4b3457fe9ee..9c4e2a18576 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -904,7 +904,7 @@
             class="field_text"
             t-att-tabindex="widget.node.attrs.tabindex"
             t-att-autofocus="widget.node.attrs.autofocus"
-            t-att-placeholder="widget.node.attrs.placeholder"
+            t-att-placeholder="! widget.get('effective_readonly') ? widget.node.attrs.placeholder : ''"
         ></textarea>
         <img class="oe_field_translate oe_input_icon" t-if="widget.field.translate"
             t-att-src='_s + "/web/static/src/img/icons/terp-translate.png"' width="16" height="16" border="0"/>