diff --git a/src/gui/render/renderMetal.mm b/src/gui/render/renderMetal.mm
index d016dce4d..d734c2de4 100644
--- a/src/gui/render/renderMetal.mm
+++ b/src/gui/render/renderMetal.mm
@@ -105,7 +105,7 @@ void FurnaceGUIRenderMetal::clear(ImVec4 color) {
   priv->renderPass.colorAttachments[0].texture=priv->drawable.texture;
   priv->renderPass.colorAttachments[0].loadAction=MTLLoadActionClear;
   priv->renderPass.colorAttachments[0].storeAction=MTLStoreActionStore;
-  priv->renderEncoder=[commandBuffer renderCommandEncoderWithDescriptor:renderPassDescriptor];
+  priv->renderEncoder=[priv->cmdBuf renderCommandEncoderWithDescriptor:renderPassDescriptor];
 }
 
 bool FurnaceGUIRenderMetal::newFrame() {