diff --git a/opencti-platform/opencti-front/src/private/components/common/stix_core_relationships/StixCoreRelationshipCreationFromEntityList.js b/opencti-platform/opencti-front/src/private/components/common/stix_core_relationships/StixCoreRelationshipCreationFromEntityList.js
index f116025c5808b..c07c71886fada 100644
--- a/opencti-platform/opencti-front/src/private/components/common/stix_core_relationships/StixCoreRelationshipCreationFromEntityList.js
+++ b/opencti-platform/opencti-front/src/private/components/common/stix_core_relationships/StixCoreRelationshipCreationFromEntityList.js
@@ -338,7 +338,7 @@ const StixCoreRelationshipCreationFromEntityList = ({
     data.parent_types.includes('Stix-Cyber-Observable')
       ? data.x_opencti_description
       : data.description,
-    120,
+    130,
   );
 
   return (
@@ -392,7 +392,11 @@ const StixCoreRelationshipCreationFromEntityList = ({
                       </ListItemIcon>
                       <ListItemText
                         primary={node.name}
-                        secondary={defaultDescription(node)}
+                        secondary={
+                          <span style={{ whiteSpace: 'nowrap' }}>
+                            {defaultDescription(node)}
+                          </span>
+                        }
                       />
                     </ListItem>
                   );
diff --git a/opencti-platform/opencti-front/src/private/components/observations/stix_cyber_observables/StixCyberObservableAddIndicators.jsx b/opencti-platform/opencti-front/src/private/components/observations/stix_cyber_observables/StixCyberObservableAddIndicators.jsx
index ac383f05a007a..4b4e9c7407802 100644
--- a/opencti-platform/opencti-front/src/private/components/observations/stix_cyber_observables/StixCyberObservableAddIndicators.jsx
+++ b/opencti-platform/opencti-front/src/private/components/observations/stix_cyber_observables/StixCyberObservableAddIndicators.jsx
@@ -15,6 +15,7 @@ import IndicatorCreation from '../indicators/IndicatorCreation';
 const styles = (theme) => ({
   drawerPaper: {
     minHeight: '100vh',
+    width: '50%',
     position: 'fixed',
     transition: theme.transitions.create('width', {
       easing: theme.transitions.easing.sharp,