diff --git a/include/manager.h b/include/manager.h
index 383d33a9..f0d8fd68 100644
--- a/include/manager.h
+++ b/include/manager.h
@@ -99,14 +99,6 @@ class Manager
    */
   bool readOpds(const string& content, const std::string& urlHost);
 
-  /**
-   * Remove a book from the library.
-   *
-   * @param id the id of the book to remove.
-   * @return True if the book were in the library.
-   */
-  bool removeBookById(const string id);
-
   /**
    * Set the path of the external fulltext index associated to a book.
    *
diff --git a/src/manager.cpp b/src/manager.cpp
index 36fc6f74..f0879013 100644
--- a/src/manager.cpp
+++ b/src/manager.cpp
@@ -281,10 +281,6 @@ bool Manager::readBookFromPath(const string path, kiwix::Book* book)
   return true;
 }
 
-bool Manager::removeBookById(const string id)
-{
-  return library.removeBookById(id);
-}
 bool Manager::setBookIndex(const string id,
                            const string path,
                            const supportedIndexType type)