diff --git a/cmake/find_rt.cmake b/cmake/find_rt.cmake
index 43c653df3e1..82ec314d195 100644
--- a/cmake/find_rt.cmake
+++ b/cmake/find_rt.cmake
@@ -1,8 +1,10 @@
 if (APPLE)
     # lib from libs/libcommon
     set (RT_LIBRARY "apple_rt")
-else ()
+elseif (ARCH_FREEBSD)
     find_library (RT_LIBRARY rt)
+else ()
+    set (RT_LIBRARY "")
 endif ()
 
 message(STATUS "Using rt: ${RT_LIBRARY}")