diff --git a/lib/core/src/lib/dialogs/dialog/dialog-data.interface.ts b/lib/core/src/lib/dialogs/dialog/dialog-data.interface.ts
index 233847ca40..2bfcc1c439 100644
--- a/lib/core/src/lib/dialogs/dialog/dialog-data.interface.ts
+++ b/lib/core/src/lib/dialogs/dialog/dialog-data.interface.ts
@@ -35,7 +35,7 @@ export interface DialogData {
     descriptionTemplate?: TemplateRef<any>;
     headerIcon?: string;
     additionalActionButtons?: AdditionalDialogActionButton[];
-    componentData: any;
+    componentData?: any;
 }
 
 export interface AdditionalDialogActionButton {