diff --git a/indra/cmake/LLWindow.cmake b/indra/cmake/LLWindow.cmake
index 80af7ff2ab..398647e58f 100644
--- a/indra/cmake/LLWindow.cmake
+++ b/indra/cmake/LLWindow.cmake
@@ -17,15 +17,10 @@ else (USESYSTEMLIBS)
   if (LINUX)
     use_prebuilt_binary(SDL)
     set (SDL_FOUND TRUE)
-    set (SDL_INCLUDE_DIR ${LIBS_PREBUILT_DIR}/i686-linux)
     set (SDL_LIBRARY SDL directfb fusion direct X11)
   endif (LINUX)
 endif (USESYSTEMLIBS)
 
-if (SDL_FOUND)
-  include_directories(${SDL_INCLUDE_DIR})
-endif (SDL_FOUND)
-
 set(LLWINDOW_INCLUDE_DIRS
     ${GLEXT_INCLUDE_DIR}
     ${LIBS_OPEN_DIR}/llwindow