diff --git a/apps/red-ui/src/app/modules/shared-dossiers/dialogs/edit-dossier-dialog/dictionary/edit-dossier-dictionary.component.ts b/apps/red-ui/src/app/modules/shared-dossiers/dialogs/edit-dossier-dialog/dictionary/edit-dossier-dictionary.component.ts
index 90a66fdf5..9eb360304 100644
--- a/apps/red-ui/src/app/modules/shared-dossiers/dialogs/edit-dossier-dialog/dictionary/edit-dossier-dictionary.component.ts
+++ b/apps/red-ui/src/app/modules/shared-dossiers/dialogs/edit-dossier-dialog/dictionary/edit-dossier-dictionary.component.ts
@@ -58,6 +58,10 @@ export class EditDossierDictionaryComponent implements EditDossierSectionInterfa
                 this.dossier.id,
                 false,
             );
+        } catch (error) {
+            return { success: false };
+        }
+        try {
             await this._updateDossierDictionary();
             return { success: true };
         } catch (error) {
diff --git a/apps/red-ui/src/app/services/entity-services/dictionary.service.ts b/apps/red-ui/src/app/services/entity-services/dictionary.service.ts
index 03d190117..56b4f6e27 100644
--- a/apps/red-ui/src/app/services/entity-services/dictionary.service.ts
+++ b/apps/red-ui/src/app/services/entity-services/dictionary.service.ts
@@ -145,6 +145,7 @@ export class DictionaryService extends EntitiesService<IDictionary, Dictionary>
         } catch (error) {
             if ((error as HttpErrorResponse).status === 400) {
                 this._toaster.error(_('dictionary-overview.error.400'));
+                throw error;
             } else {
                 this._toaster.error(_('dictionary-overview.error.generic'));
             }