diff --git a/db.h b/db.h
index 55e11496..2aacfb96 100644
--- a/db.h
+++ b/db.h
@@ -281,7 +281,7 @@ class CAddrDb {
       } else {
         CAddrDb *db = const_cast<CAddrDb*>(this);
         db->nId = 0;
-        int n;
+        int n = 0;
         READWRITE(n);
         for (int i=0; i<n; i++) {
           CAddrInfo info;