diff --git a/src/net.cpp b/src/net.cpp
index 8b4b809f5..225f30970 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -85,7 +85,7 @@ std::map<CNetAddr, LocalServiceInfo> mapLocalHost;
 static bool vfLimited[NET_MAX] = {};
 std::string strSubVersion;
 
-unordered_limitedmap<uint256, int64_t, StaticSaltedHasher> mapAlreadyAskedFor(MAX_INV_SZ);
+unordered_limitedmap<uint256, int64_t, StaticSaltedHasher> mapAlreadyAskedFor(MAX_INV_SZ, MAX_INV_SZ * 2);
 
 // Signals for message handling
 static CNodeSignals g_signals;