diff --git a/services/src/main/java/org/exoplatform/onlyoffice/OnlyofficeEditorServiceImpl.java b/services/src/main/java/org/exoplatform/onlyoffice/OnlyofficeEditorServiceImpl.java
index 69fbfad99..7fabf752a 100644
--- a/services/src/main/java/org/exoplatform/onlyoffice/OnlyofficeEditorServiceImpl.java
+++ b/services/src/main/java/org/exoplatform/onlyoffice/OnlyofficeEditorServiceImpl.java
@@ -133,7 +133,6 @@
 import org.exoplatform.services.wcm.utils.WCMCoreUtils;
 import org.exoplatform.social.core.activity.model.ExoSocialActivity;
 import org.exoplatform.social.core.activity.model.ExoSocialActivityImpl;
-import org.exoplatform.social.core.application.SpaceActivityPublisher;
 import org.exoplatform.social.core.identity.provider.OrganizationIdentityProvider;
 import org.exoplatform.social.core.manager.ActivityManager;
 import org.exoplatform.social.core.manager.IdentityManager;
@@ -164,6 +163,8 @@ public class OnlyofficeEditorServiceImpl implements OnlyofficeEditorService, Sta
   /** The Constant UTF_8. */
   private static final String    UTF_8                    = "utf-8";
 
+  public static final String SPACE_APP_ID = "exosocial:spaces";
+
   /** The Constant RANDOM. */
   protected static final Random  RANDOM                   = new Random();
 
@@ -2361,7 +2362,7 @@ protected String addComment(String activityId, String commentText, String userId
                                                                                                        false);
       ExoSocialActivity activity = activityManager.getActivity(activityId);
       ExoSocialActivity comment = new ExoSocialActivityImpl(identity.getId(),
-                                                            SpaceActivityPublisher.SPACE_APP_ID,
+                                                            SPACE_APP_ID,
                                                             commentText,
                                                             null);
       activityManager.saveComment(activity, comment);
diff --git a/services/src/test/java/org/exoplatform/onlyoffice/mock/SpaceServiceMock.java b/services/src/test/java/org/exoplatform/onlyoffice/mock/SpaceServiceMock.java
index dad38ae7e..bcfa4f9d2 100644
--- a/services/src/test/java/org/exoplatform/onlyoffice/mock/SpaceServiceMock.java
+++ b/services/src/test/java/org/exoplatform/onlyoffice/mock/SpaceServiceMock.java
@@ -5,7 +5,6 @@
 import org.exoplatform.commons.utils.ListAccess;
 import org.exoplatform.social.core.application.PortletPreferenceRequiredPlugin;
 import org.exoplatform.social.core.identity.model.Identity;
-import org.exoplatform.social.core.space.SpaceApplicationConfigPlugin;
 import org.exoplatform.social.core.space.SpaceException;
 import org.exoplatform.social.core.space.SpaceFilter;
 import org.exoplatform.social.core.space.SpaceListAccess;
@@ -207,16 +206,6 @@ public void registerSpaceListenerPlugin(SpaceListenerPlugin spaceListenerPlugin)
   public void unregisterSpaceListenerPlugin(SpaceListenerPlugin spaceListenerPlugin) {
   }
 
-
-  public void setSpaceApplicationConfigPlugin(SpaceApplicationConfigPlugin spaceApplicationConfigPlugin) {
-  }
-
-
-  public SpaceApplicationConfigPlugin getSpaceApplicationConfigPlugin() {
-    return null;
-  }
-
-
   public List<Space> getAllSpaces() throws SpaceException {
     return null;
   }