diff --git a/.ycm_extra_conf.py b/.ycm_extra_conf.py
index b485704247..e335358d5d 100644
--- a/.ycm_extra_conf.py
+++ b/.ycm_extra_conf.py
@@ -41,6 +41,8 @@ flags = [
 '-fexceptions',
 '-DNDEBUG',
 '-Iext/native',
+'-Iext/native/ext',
+'-Iext/native/ext/glew',
 '-ICommon',
 # THIS IS IMPORTANT! Without a "-std=<something>" flag, clang won't know which
 # language to use when compiling headers. So it will guess. Badly. So C++