diff --git a/inc/hgl/graph/vulkan/VKCommandBuffer.h b/inc/hgl/graph/vulkan/VKCommandBuffer.h
index 9e04ee99..1a64efb2 100644
--- a/inc/hgl/graph/vulkan/VKCommandBuffer.h
+++ b/inc/hgl/graph/vulkan/VKCommandBuffer.h
@@ -18,6 +18,8 @@ class CommandBuffer
     VkRect2D render_area;
     VkViewport viewport;
 
+    float default_line_width;
+
     VkPipelineLayout pipeline_layout;
 
 public:
diff --git a/src/RenderDevice/Vulkan/VKCommandBuffer.cpp b/src/RenderDevice/Vulkan/VKCommandBuffer.cpp
index fdfb69a4..c2a4c282 100644
--- a/src/RenderDevice/Vulkan/VKCommandBuffer.cpp
+++ b/src/RenderDevice/Vulkan/VKCommandBuffer.cpp
@@ -33,6 +33,8 @@ CommandBuffer::CommandBuffer(VkDevice dev,const VkExtent2D &extent,const uint32_
     render_area.offset.y=0;
     render_area.extent=extent;
 
+    default_line_width=1.0;
+
     pipeline_layout=VK_NULL_HANDLE;
 }
 
@@ -88,6 +90,7 @@ bool CommandBuffer::BeginRenderPass(VkRenderPass rp,VkFramebuffer fb)
 
     vkCmdSetViewport(cmd_buf,0,1,&viewport);
     vkCmdSetScissor(cmd_buf,0,1,&render_area);
+    vkCmdSetLineWidth(cmd_buf,default_line_width);
 
     pipeline_layout=VK_NULL_HANDLE;