diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/util/RemoteTreeContentManager.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/util/RemoteTreeContentManager.java
index 5176c9f1aa2..d3454b6e8cf 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/util/RemoteTreeContentManager.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/util/RemoteTreeContentManager.java
@@ -116,6 +116,7 @@ public class RemoteTreeContentManager {
          */
         public void add(Object[] elements, IProgressMonitor monitor) {
             Object[] filtered = fViewer.filter(elements);
+            fViewer.getSorter().sort(fViewer, filtered);
             if (filtered.length > 0) {
                 replaceChildren(fParent, filtered, offset, monitor);
                 offset = offset + filtered.length;