diff --git a/base/src/main/kotlin/de/staropensource/engine/base/annotation/NonKotlinContact.kt b/base/src/main/kotlin/de/staropensource/engine/base/annotation/NonKotlinContact.kt
index 607536d09..914abcdaf 100644
--- a/base/src/main/kotlin/de/staropensource/engine/base/annotation/NonKotlinContact.kt
+++ b/base/src/main/kotlin/de/staropensource/engine/base/annotation/NonKotlinContact.kt
@@ -39,6 +39,7 @@ package de.staropensource.engine.base.annotation
  * @since v1-alpha10
  */
 @Target(
+    AnnotationTarget.CLASS,
     AnnotationTarget.PROPERTY,
     AnnotationTarget.FIELD,
     AnnotationTarget.CONSTRUCTOR,