diff --git a/indra/cmake/UI.cmake b/indra/cmake/UI.cmake
index 49ccf0dbaf..681f6e6116 100755
--- a/indra/cmake/UI.cmake
+++ b/indra/cmake/UI.cmake
@@ -71,7 +71,7 @@ else (USESYSTEMLIBS)
       set(UI_LIBRARIES ${UI_LIBRARIES} ${UI_LIB_${libname}})
     endforeach(libname)
 
-#    set(UI_LIBRARIES ${UI_LIBRARIES} Xinerama)
+    set(UI_LIBRARIES ${UI_LIBRARIES} Xinerama)
   endif (LINUX)
 
   include_directories (
diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index c3fcbe7aa7..c174900347 100755
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -1676,9 +1676,9 @@ if (LINUX)
 
     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--as-needed")
 
-#    set(viewer_LIBRARIES
-#        Xinerama
-#        )
+    set(viewer_LIBRARIES
+        Xinerama
+        )
     if (OPENAL)
       LIST(APPEND viewer_LIBRARIES ${OPENAL_LIBRARIES})
     endif (OPENAL)