diff --git a/retroshare-nogui/src/introserver.cc b/retroshare-nogui/src/introserver.cc
index 0026468c0..6ff90cdb5 100644
--- a/retroshare-nogui/src/introserver.cc
+++ b/retroshare-nogui/src/introserver.cc
@@ -220,6 +220,7 @@ int RsIntroServer::addCertificateFile(std::string filepath)
 	std::cerr << std::endl;
 	std::cerr << "==========================================================" << std::endl;
 
+    fclose(fd) ;
 	return addNewUser(certGPG);
 }