diff --git a/src/net.cpp b/src/net.cpp
index b55cd72e8..5a48cb556 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1478,7 +1478,7 @@ bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOu
     if (!pszDest) {
         if (IsLocal(addrConnect) ||
             FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect) ||
-            FindNode(addrConnect.ToStringIPPort().c_str()))
+            FindNode(addrConnect.ToStringIPPort()))
             return false;
     } else if (FindNode(pszDest))
         return false;