diff --git a/src/lib/server/Server.cpp b/src/lib/server/Server.cpp
index 0b1660ea..d3aece30 100644
--- a/src/lib/server/Server.cpp
+++ b/src/lib/server/Server.cpp
@@ -455,7 +455,7 @@ Server::switchScreen(BaseClientProxy* dst,
 	assert(dst != NULL);
 
 	// if trial is expired, exit the process
-	if (!m_args.m_serial.isExpired(std::time(0))) {
+	if (m_args.m_serial.isExpired(std::time(0))) {
 		LOG((CLOG_ERR "trial has expired, aborting server"));
 		exit(kExitSuccess);
 	}