diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8dbad2924..9f47b5fae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -188,7 +188,6 @@ include_directories("."
     SYSTEM
     ${SDL2_INCLUDE_DIR}
     ${Boost_INCLUDE_DIR}
-    ${PLATFORM_INCLUDE_DIR}
     ${MYGUI_INCLUDE_DIRS}
     ${OPENAL_INCLUDE_DIR}
     ${BULLET_INCLUDE_DIRS}