diff --git a/CMakeLists.txt b/CMakeLists.txt
index 14396204c6..731775113b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,9 +5,8 @@ project(hifi)
 MESSAGE("start...")
 
 IF (WIN32)
+    include_directories(SYSTEM "externals/winsdk")
 	add_definitions( -DNOMINMAX -D_CRT_SECURE_NO_WARNINGS )
-	#MESSAGE(${CMAKE_PREFIX_PATH})
-	#set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} "C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A ")
 	set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} "C:\\Program Files\\Microsoft SDKs\\Windows\\v7.1 ")
 ENDIF(WIN32)
 
diff --git a/externals/winsdk/ammintrin.h b/externals/winsdk/ammintrin.h
new file mode 100644
index 0000000000..723faad124
--- /dev/null
+++ b/externals/winsdk/ammintrin.h
@@ -0,0 +1 @@
+// fake/empty ammintrin.h
\ No newline at end of file