diff --git a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/update/AbstractCachingVMProvider.java b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/update/AbstractCachingVMProvider.java
index 1eb368be825..1a7c63edfcb 100644
--- a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/update/AbstractCachingVMProvider.java
+++ b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/update/AbstractCachingVMProvider.java
@@ -718,7 +718,7 @@ public class AbstractCachingVMProvider extends AbstractVMProvider
                         // We are not changing the archived data.  If archive data exists in the entry, leave it.
                         // Otherwise remove the whole entry.
                         if (elementDataEntry.fArchiveProperties != null) {
-                            elementDataEntry.fProperties.clear();
+                            elementDataEntry.fProperties = null;
                         } else {
                             fCacheData.remove(entry.fKey);
                             entry.remove();