diff --git a/src/libsysprof-analyze/sysprof-callgraph.c b/src/libsysprof-analyze/sysprof-callgraph.c
index a3bf441f..9280fab9 100644
--- a/src/libsysprof-analyze/sysprof-callgraph.c
+++ b/src/libsysprof-analyze/sysprof-callgraph.c
@@ -80,6 +80,23 @@ list_model_iface_init (GListModelInterface *iface)
 G_DEFINE_FINAL_TYPE_WITH_CODE (SysprofCallgraph, sysprof_callgraph, G_TYPE_OBJECT,
                                G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, list_model_iface_init))
 
+static void
+sysprof_callgraph_node_free (SysprofCallgraphNode *node,
+                             gboolean              free_self)
+{
+  SysprofCallgraphNode *iter = node->children;
+
+  while (iter)
+    {
+      SysprofCallgraphNode *to_free = iter;
+      iter = iter->next;
+      sysprof_callgraph_node_free (to_free, TRUE);
+    }
+
+  if (free_self)
+    g_free (node);
+}
+
 static void
 sysprof_callgraph_dispose (GObject *object)
 {
@@ -107,6 +124,8 @@ sysprof_callgraph_finalize (GObject *object)
   g_clear_object (&self->traceables);
   g_clear_object (&self->everything);
 
+  sysprof_callgraph_node_free (&self->root, FALSE);
+
   G_OBJECT_CLASS (sysprof_callgraph_parent_class)->finalize (object);
 }