diff --git a/CMakeLists.txt b/CMakeLists.txt
index c40b63ad..8e8988c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,6 +35,7 @@ SET(VULKAN_LIB  ${Vulkan_LIBRARIES})
 add_definitions(-DMATH_USE_OPENGL)
 add_definitions(-DMATH_RIGHTHANDED_CAMERA)
 add_definitions(-DMATH_AVX)
+add_definitions(-DGLFW_INCLUDE_VULKAN)
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/3rdpty/MathGeoLib/src)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/3rdpty/GLEWCore/inc)
diff --git a/example/Vulkan/VKCommandBuffer.cpp b/example/Vulkan/VKCommandBuffer.cpp
index 652f638a..caedc016 100644
--- a/example/Vulkan/VKCommandBuffer.cpp
+++ b/example/Vulkan/VKCommandBuffer.cpp
@@ -112,6 +112,7 @@ bool CommandBuffer::Bind(Renderable *render_obj)
 
     return(true);
 }
+
 void CommandBuffer::SetDepthBias(float constant_factor,float clamp,float slope_factor)
 {
     vkCmdSetDepthBias(cmd_buf,constant_factor,clamp,slope_factor);