diff --git a/gtsam_unstable/nonlinear/BayesTreeMarginalizationHelper.h b/gtsam_unstable/nonlinear/BayesTreeMarginalizationHelper.h
index 724814fd0..53d030624 100644
--- a/gtsam_unstable/nonlinear/BayesTreeMarginalizationHelper.h
+++ b/gtsam_unstable/nonlinear/BayesTreeMarginalizationHelper.h
@@ -70,7 +70,6 @@ public:
     std::set<Key> additionalKeys;
     std::set<Key> marginalizableKeySet(
         marginalizableKeys.begin(), marginalizableKeys.end());
-    std::set<sharedClique> dependentCliques;
     CachedSearch cachedSearch;
 
     // Check each clique that contains a marginalizable key