diff --git a/src/platform/sdl/CMakeLists.txt b/src/platform/sdl/CMakeLists.txt
index 63266688d..3c21dafd5 100644
--- a/src/platform/sdl/CMakeLists.txt
+++ b/src/platform/sdl/CMakeLists.txt
@@ -37,6 +37,9 @@ file(GLOB PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/sdl/sdl-*.c)
 set(PLATFORM_LIBRARY ${SDL_LIBRARY} ${SDLMAIN_LIBRARY} ${PIXMAN-1_LIBRARIES})
 include_directories(${CMAKE_SOURCE_DIR}/src/platform/sdl ${SDL_INCLUDE_DIR})
 
+set(SDL_INCLUDE_DIR "${SDL_INCLUDE_DIR}" PARENT_SCOPE)
+set(SDL_LIBRARY "${SDL_LIBRARY}" PARENT_SCOPE)
+
 set(MAIN_SRC ${CMAKE_SOURCE_DIR}/src/platform/sdl/main.c)
 
 if(BUILD_RASPI)