diff --git a/lib/x11/WindowXlib.cpp b/lib/x11/WindowXlib.cpp
index 8c1cf38..5af7c1b 100644
--- a/lib/x11/WindowXlib.cpp
+++ b/lib/x11/WindowXlib.cpp
@@ -830,7 +830,7 @@ public:
         });
         initcv.wait(outerLk);
 
-        m_dataFactory = _NewVulkanDataFactory(Sthis, m_ctx, m_drawSamples);
+        m_dataFactory = _NewVulkanDataFactory(this, m_ctx, m_drawSamples);
         m_commandQueue = _NewVulkanCommandQueue(m_ctx, m_ctx->m_windows[m_parentWindow].get(), this);
 
         return true;