diff --git a/CMakeLists.txt b/CMakeLists.txt
index d1ae56f3..bb473c4b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -248,9 +248,6 @@ if (_GLFW_X11)
     # Set up library and include paths
     list(APPEND glfw_INCLUDE_DIRS "${X11_X11_INCLUDE_PATH}")
     list(APPEND glfw_LIBRARIES "${X11_X11_LIB}" "${CMAKE_THREAD_LIBS_INIT}")
-    if (UNIX AND NOT APPLE)
-        list(APPEND glfw_LIBRARIES "${RT_LIBRARY}")
-    endif()
 
     # Check for XRandR (modern resolution switching and gamma control)
     if (NOT X11_Xrandr_FOUND)