diff --git a/server/masterserver/gsmgr.cc b/server/masterserver/gsmgr.cc
index 7030151..ab728fd 100644
--- a/server/masterserver/gsmgr.cc
+++ b/server/masterserver/gsmgr.cc
@@ -203,7 +203,7 @@ GSNode* GSMgr::AllocNode(int channel)
          {
           sorted_node_hash_.size(),
           node_key_hash_.size(),
-          sorted_nodes->size(),
+          sorted_nodes ? sorted_nodes->size() : 0,
           channel
          });
     return nullptr;