diff --git a/addons/partner_autocomplete/static/src/scss/partner_autocomplete.scss b/addons/partner_autocomplete/static/src/scss/partner_autocomplete.scss
index d785bfeef63..3e608dbdc69 100644
--- a/addons/partner_autocomplete/static/src/scss/partner_autocomplete.scss
+++ b/addons/partner_autocomplete/static/src/scss/partner_autocomplete.scss
@@ -30,3 +30,8 @@
         }
     }
 }
+
+// Same rule as .oe_title .o_field_char
+.o_form_view .o_form_editable .oe_title .o_field_field_partner_autocomplete {
+    width: 100%;
+}