diff --git a/openbis_ng_ui/src/js/components/types/objectType/ObjectType.jsx b/openbis_ng_ui/src/js/components/types/objectType/ObjectType.jsx
index 6ac80111e6609176597d704668b9ee0f4db51443..76ec71f03ae37a250dd8fa6518e126d6e5aca400 100644
--- a/openbis_ng_ui/src/js/components/types/objectType/ObjectType.jsx
+++ b/openbis_ng_ui/src/js/components/types/objectType/ObjectType.jsx
@@ -513,6 +513,10 @@ class ObjectType extends React.PureComponent {
           </div>
         </div>
         <Resizable
+          defaultSize={{
+            width: 400,
+            height: 'auto'
+          }}
           enable={{
             left: true,
             top: false,
diff --git a/openbis_ng_ui/src/js/components/types/objectType/ObjectTypeParameters.jsx b/openbis_ng_ui/src/js/components/types/objectType/ObjectTypeParameters.jsx
index 6eeabc6918c48627d4e7695b4096bdf23ddb714c..abfe8821f347eaf604d48c1e44d180f3dee5d80b 100644
--- a/openbis_ng_ui/src/js/components/types/objectType/ObjectTypeParameters.jsx
+++ b/openbis_ng_ui/src/js/components/types/objectType/ObjectTypeParameters.jsx
@@ -5,11 +5,7 @@ import ObjectTypeParametersProperty from './ObjectTypeParametersProperty.jsx'
 import ObjectTypeParametersSection from './ObjectTypeParametersSection.jsx'
 import logger from '../../../common/logger.js'
 
-const styles = () => ({
-  container: {
-    minWidth: '400px'
-  }
-})
+const styles = () => ({})
 
 class ObjectTypeParameters extends React.PureComponent {
   constructor(props) {
@@ -25,12 +21,11 @@ class ObjectTypeParameters extends React.PureComponent {
       properties,
       selection,
       onChange,
-      onSelectionChange,
-      classes
+      onSelectionChange
     } = this.props
 
     return (
-      <div className={classes.container}>
+      <div>
         <ObjectTypeParametersType
           type={type}
           selection={selection}