diff --git a/glslang/OSDependent/Unix/CMakeLists.txt b/glslang/OSDependent/Unix/CMakeLists.txt
index 1480780b..319c70cc 100644
--- a/glslang/OSDependent/Unix/CMakeLists.txt
+++ b/glslang/OSDependent/Unix/CMakeLists.txt
@@ -2,7 +2,7 @@
 
 cmake_minimum_required(VERSION 2.8)
 
-add_library(OSDependent STATIC ossource.cpp osinclude.h)
+add_library(OSDependent STATIC ossource.cpp ../osinclude.h)
 
 install(TARGETS OSDependent 
         ARCHIVE DESTINATION lib)
diff --git a/glslang/OSDependent/Windows/CMakeLists.txt b/glslang/OSDependent/Windows/CMakeLists.txt
index be7f93a9..ff0b99e9 100644
--- a/glslang/OSDependent/Windows/CMakeLists.txt
+++ b/glslang/OSDependent/Windows/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 2.8)
 
-set(SOURCES ossource.cpp osinclude.h)
+set(SOURCES ossource.cpp ../osinclude.h)
 
 add_library(OSDependent STATIC ${SOURCES})