diff --git a/newIDE/app/src/EventsSheet/ParameterFields/LeaderboardIdField.js b/newIDE/app/src/EventsSheet/ParameterFields/LeaderboardIdField.js
index 62c8543fa999..c0834165b15b 100644
--- a/newIDE/app/src/EventsSheet/ParameterFields/LeaderboardIdField.js
+++ b/newIDE/app/src/EventsSheet/ParameterFields/LeaderboardIdField.js
@@ -161,8 +161,12 @@ export default React.forwardRef<ParameterFieldProps, ParameterFieldInterface>(
                     ) => {
                       if (!leaderboards) {
                         if (!isOnline)
-                          return 'Unable to fetch leaderboards as you are offline.';
-                        return 'Your game may not be registered, create one in the leaderboard manager.';
+                          return i18n._(
+                            t`Unable to fetch leaderboards as you are offline.`
+                          );
+                        return i18n._(
+                          t`Your game may not be registered, create one in the leaderboard manager.`
+                        );
                       }
                     }}
                   />
diff --git a/newIDE/app/src/PropertiesEditor/LeaderboardIdPropertyField.js b/newIDE/app/src/PropertiesEditor/LeaderboardIdPropertyField.js
index c8f414f128cd..a3358d031aae 100644
--- a/newIDE/app/src/PropertiesEditor/LeaderboardIdPropertyField.js
+++ b/newIDE/app/src/PropertiesEditor/LeaderboardIdPropertyField.js
@@ -1,6 +1,6 @@
 // @flow
 import React from 'react';
-import { t } from '@lingui/macro';
+import { t, Trans } from '@lingui/macro';
 import { I18n } from '@lingui/react';
 import SelectField, { type SelectFieldInterface } from '../UI/SelectField';
 import SelectOption from '../UI/SelectOption';
@@ -121,6 +121,18 @@ export default React.forwardRef<Props, LeaderboardIdPropertyFieldInterface>(
                     helperMarkdownText={props.helperMarkdownText}
                     multiline
                     style={props.fieldStyle}
+                    errorText={
+                      leaderboards ? null : isOnline ? (
+                        <Trans>
+                          Your game may not be registered, create one in the
+                          leaderboard manager.
+                        </Trans>
+                      ) : (
+                        <Trans>
+                          Unable to fetch leaderboards as you are offline.
+                        </Trans>
+                      )
+                    }
                   />
                 )
               }