diff --git a/connectivity/source/drivers/firebird/Connection.hxx b/connectivity/source/drivers/firebird/Connection.hxx
index c35758c4fcbb..2bd7675f3871 100644
--- a/connectivity/source/drivers/firebird/Connection.hxx
+++ b/connectivity/source/drivers/firebird/Connection.hxx
@@ -92,13 +92,6 @@ namespace connectivity
             /** Denotes that we have a database stored within a .odb file. */
             bool            m_bIsEmbedded;
 
-            /**
-             * Denotes that the database stored in the .odb file is an
-             * archive file (.fbk). Older version of LO had a .fdb file, not a
-             * .fbk.
-             * (Only used if m_bIsEmbedded is true).
-             */
-            bool            m_bIsFbkStored;
             /**
              * Handle for the parent DatabaseDocument. We need to notify this
              * whenever any data is written to our temporary database so that