diff --git a/src/services/passwordGeneration.service.ts b/src/services/passwordGeneration.service.ts
index 907d7664242..f5b9b083aa2 100644
--- a/src/services/passwordGeneration.service.ts
+++ b/src/services/passwordGeneration.service.ts
@@ -184,7 +184,7 @@ export class PasswordGenerationService implements PasswordGenerationServiceAbstr
             if (options == null) {
                 this.optionsCache = DefaultOptions;
             } else {
-                this.optionsCache = options;
+                this.optionsCache = Object.assign({}, DefaultOptions, options);
             }
         }