diff --git a/src/network/network_gui.cpp b/src/network/network_gui.cpp
--- a/src/network/network_gui.cpp
+++ b/src/network/network_gui.cpp
@@ -664,7 +664,9 @@ public:
 			DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_SERVER_VERSION); // server version
 			y += FONT_HEIGHT_NORMAL;
 
-			SetDParamStr(0, sel->address.GetAddressAsString());
+			char network_addr_buffer[NETWORK_HOSTNAME_LENGTH + 6 + 7];
+			sel->address.GetAddressAsString(network_addr_buffer, lastof(network_addr_buffer));
+			SetDParamStr(0, network_addr_buffer);
 			DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_SERVER_ADDRESS); // server address
 			y += FONT_HEIGHT_NORMAL;