diff --git a/CMakeLists.txt b/CMakeLists.txt
index d4537201..32395c05 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,9 @@ endif(ENABLE_HLSL)
 
 if(WIN32)
     set(CMAKE_DEBUG_POSTFIX "d")
-    include(ChooseMSVCCRT.cmake)
+    if(MSVC)
+        include(ChooseMSVCCRT.cmake)
+    endif(MSVC)
     add_definitions(-DGLSLANG_OSINCLUDE_WIN32)
 elseif(UNIX)
     add_definitions(-fPIC)