diff --git a/diskTreeComponent.cpp b/diskTreeComponent.cpp
index 09c34a2..90539a5 100644
--- a/diskTreeComponent.cpp
+++ b/diskTreeComponent.cpp
@@ -357,6 +357,10 @@ diskTreeComponent::internalNodes::internalNodes(int xid, recordid root, recordid
   datapage_alloc(new RegionAllocator(xid, datapage_state))
 { }
 
+diskTreeComponent::internalNodes::~internalNodes() {
+  delete internal_node_alloc;
+  delete datapage_alloc;
+}
 
 /* adding pages:
 
diff --git a/diskTreeComponent.h b/diskTreeComponent.h
index 54c16a6..df237e7 100644
--- a/diskTreeComponent.h
+++ b/diskTreeComponent.h
@@ -81,7 +81,7 @@ class diskTreeComponent {
 
     internalNodes(int xid, pageid_t internal_region_size, pageid_t datapage_region_size, pageid_t datapage_size);
     internalNodes(int xid, recordid root, recordid internal_node_state, recordid datapage_state);
-
+    ~internalNodes();
     void print_tree(int xid);
 
     //returns the id of the data page that could contain the given key