--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -184,7 +184,6 @@
   else(APPLE)
     set(NATS_OS "LINUX")
     set(NATS_USE_PTHREAD "-pthread")
-    set(NATS_EXTRA_LIB "rt")
   endif(APPLE)
   if (${NATS_BUILD_ARCH} MATCHES "32")
     if(NOT APPLE)