diff --git a/komga/src/main/kotlin/org/gotson/komga/interfaces/api/WebPubGenerator.kt b/komga/src/main/kotlin/org/gotson/komga/interfaces/api/WebPubGenerator.kt
index 6b6260b69..fc4239768 100644
--- a/komga/src/main/kotlin/org/gotson/komga/interfaces/api/WebPubGenerator.kt
+++ b/komga/src/main/kotlin/org/gotson/komga/interfaces/api/WebPubGenerator.kt
@@ -210,7 +210,7 @@ class WebPubGenerator(
       children = children.map { it.toWPLinkDto(uriBuilder) },
     )
 
-  protected open fun toWPMetadataDto(bookDto: BookDto) =
+  protected fun toWPMetadataDto(bookDto: BookDto) =
     WPMetadataDto(
       title = bookDto.metadata.title,
       description = bookDto.metadata.summary,