diff --git a/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/AbstractCheckExtensionHelper.java b/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/AbstractCheckExtensionHelper.java
index bdbab27825..72a352d87c 100644
--- a/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/AbstractCheckExtensionHelper.java
+++ b/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/AbstractCheckExtensionHelper.java
@@ -143,7 +143,7 @@ protected <T> T getFromServiceProvider(final Class<T> type, final URI uri) {
    *         in.
    */
   @SuppressWarnings("PMD.UnusedFormalParameter")
-  protected boolean isExtensionUpdateRequired(final CheckCatalog catalog, final IPluginExtension extension, final Iterable<IPluginElement> elements) {
+  public boolean isExtensionUpdateRequired(final CheckCatalog catalog, final IPluginExtension extension, final Iterable<IPluginElement> elements) {
     return extension.getPoint().equals(getExtensionPointId()); // if points are different, given extension must not be updated
   }
 
diff --git a/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/CheckMarkerHelpExtensionHelper.java b/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/CheckMarkerHelpExtensionHelper.java
index e4a7b46152..055aeee329 100644
--- a/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/CheckMarkerHelpExtensionHelper.java
+++ b/com.avaloq.tools.ddk.check.ui/src/com/avaloq/tools/ddk/check/ui/builder/util/CheckMarkerHelpExtensionHelper.java
@@ -138,7 +138,7 @@ public String apply(final XIssueExpression input) {
   }
 
   @Override
-  protected boolean isExtensionUpdateRequired(final CheckCatalog catalog, final IPluginExtension extension, final Iterable<IPluginElement> elements) {
+  public boolean isExtensionUpdateRequired(final CheckCatalog catalog, final IPluginExtension extension, final Iterable<IPluginElement> elements) {
     // TODO should check if this check is too expensive; consider rewriting contents instead
     if (!super.isExtensionUpdateRequired(catalog, extension, elements)) {
       return false;