diff --git a/include/unotools/accessiblerelationsethelper.hxx b/include/unotools/accessiblerelationsethelper.hxx
index 02803cf9ae43..88ebb5abe308 100644
--- a/include/unotools/accessiblerelationsethelper.hxx
+++ b/include/unotools/accessiblerelationsethelper.hxx
@@ -111,10 +111,6 @@ public:
     */
     virtual css::uno::Sequence<css::uno::Type> SAL_CALL getTypes() override;
 
-    /** Returns an implementation id.
-    */
-    virtual css::uno::Sequence<sal_Int8> SAL_CALL getImplementationId() override;
-
 private:
     /// Mutex guarding this object.
     mutable std::mutex maMutex;
diff --git a/unotools/source/accessibility/accessiblerelationsethelper.cxx b/unotools/source/accessibility/accessiblerelationsethelper.cxx
index 0302e58d41d0..0c16481e19ed 100644
--- a/unotools/source/accessibility/accessiblerelationsethelper.cxx
+++ b/unotools/source/accessibility/accessiblerelationsethelper.cxx
@@ -166,9 +166,4 @@ uno::Sequence< css::uno::Type> AccessibleRelationSetHelper::getTypes()
     return aTypes;
 }
 
-uno::Sequence<sal_Int8> SAL_CALL AccessibleRelationSetHelper::getImplementationId()
-{
-    return css::uno::Sequence<sal_Int8>();
-}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */