diff --git a/libs/components/src/select/option.component.ts b/libs/components/src/select/option.component.ts
index 1ffdc3f9320..39671b57221 100644
--- a/libs/components/src/select/option.component.ts
+++ b/libs/components/src/select/option.component.ts
@@ -9,11 +9,11 @@ import { MappedOptionComponent } from "./option";
   template: `<ng-template><ng-content></ng-content></ng-template>`,
 })
 export class OptionComponent<T = unknown> implements MappedOptionComponent<T> {
-  icon = input<string>();
+  readonly icon = input<string>();
 
-  value = input.required<T>();
+  readonly value = input.required<T>();
 
-  label = input.required<string>();
+  readonly label = input.required<string>();
 
-  disabled = input(undefined, { transform: booleanAttribute });
+  readonly disabled = input(undefined, { transform: booleanAttribute });
 }
diff --git a/libs/components/src/select/select.component.ts b/libs/components/src/select/select.component.ts
index 1ddd2f322df..f0c707f3b36 100644
--- a/libs/components/src/select/select.component.ts
+++ b/libs/components/src/select/select.component.ts
@@ -42,14 +42,14 @@ let nextId = 0;
   providers: [{ provide: BitFormFieldControl, useExisting: SelectComponent }],
   imports: [NgSelectModule, ReactiveFormsModule, FormsModule],
   host: {
-    "[id]": "this.id()",
+    "[id]": "id()",
   },
 })
 export class SelectComponent<T> implements BitFormFieldControl, ControlValueAccessor {
   @ViewChild(NgSelectComponent) select: NgSelectComponent;
 
   /** Optional: Options can be provided using an array input or using `bit-option` */
-  items = model<Option<T>[]>();
+  items = model<Option<T>[] | undefined>();
 
   readonly placeholder = input(this.i18nService.t("selectPlaceholder"));
   @Output() closed = new EventEmitter();
@@ -162,7 +162,7 @@ export class SelectComponent<T> implements BitFormFieldControl, ControlValueAcce
   }
 
   /**Implemented as part of BitFormFieldControl */
-  id = input(`bit-multi-select-${nextId++}`);
+  readonly id = input(`bit-multi-select-${nextId++}`);
 
   /**Implemented as part of BitFormFieldControl */
   // TODO: Skipped for migration because:
@@ -188,8 +188,8 @@ export class SelectComponent<T> implements BitFormFieldControl, ControlValueAcce
     return [key, this.ngControl?.errors[key]];
   }
 
-  private findSelectedOption(items: Option<T>[], value: T): Option<T> | undefined {
-    return items.find((item) => item.value === value);
+  private findSelectedOption(items: Option<T>[] | undefined, value: T): Option<T> | undefined {
+    return items?.find((item) => item.value === value);
   }
 
   /**Emits the closed event. */