diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7509ad4749..281f9e6631 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -71,6 +71,12 @@ if (SLIC3R_GUI)
         list(APPEND wxWidgets_LIBRARIES ${EXPAT_LIBRARIES})
     endif ()
 
+    # This is an issue in the new wxWidgets cmake build, doesn't deal with librt
+    find_library(LIBRT rt)
+    if(LIBRT)
+        list(APPEND wxWidgets_LIBRARIES ${LIBRT})
+    endif()
+
 #    list(REMOVE_ITEM wxWidgets_LIBRARIES oleacc)
     message(STATUS "wx libs: ${wxWidgets_LIBRARIES}")
 
diff --git a/src/slic3r/CMakeLists.txt b/src/slic3r/CMakeLists.txt
index 3711b12a10..2ac8a1ff0f 100644
--- a/src/slic3r/CMakeLists.txt
+++ b/src/slic3r/CMakeLists.txt
@@ -204,7 +204,7 @@ add_library(libslic3r_gui STATIC ${SLIC3R_GUI_SOURCES})
 
 encoding_check(libslic3r_gui)
 
-target_link_libraries(libslic3r_gui libslic3r avrdude cereal imgui GLEW::GLEW OpenGL::GL OpenGL::GLU hidapi libcurl ${wxWidgets_LIBRARIES} rt)
+target_link_libraries(libslic3r_gui libslic3r avrdude cereal imgui GLEW::GLEW OpenGL::GL OpenGL::GLU hidapi libcurl ${wxWidgets_LIBRARIES})
 
 if(APPLE)
     target_link_libraries(libslic3r_gui ${DISKARBITRATION_LIBRARY})