diff --git a/utils/trie-with-policy.h b/utils/trie-with-policy.h
index 79480da..d477643 100644
--- a/utils/trie-with-policy.h
+++ b/utils/trie-with-policy.h
@@ -200,6 +200,9 @@
   const parent_trie &
   getTrie () const { return trie_; }
 
+  parent_trie &
+  getTrie () { return trie_; }
+
   const policy_container &
   getPolicy () const { return policy_; }