diff --git a/packages/text-annotator/src/model/core/TextAnnotation.ts b/packages/text-annotator/src/model/core/TextAnnotation.ts
index 4d94c587..4dacf9bf 100644
--- a/packages/text-annotator/src/model/core/TextAnnotation.ts
+++ b/packages/text-annotator/src/model/core/TextAnnotation.ts
@@ -10,8 +10,6 @@ export interface TextAnnotationTarget extends AnnotationTarget {
 
   selector: TextSelector[];
 
-  styleClass?: string;
-
 }
 
 export interface TextSelector {