diff --git a/src/core/gpu_hw.h b/src/core/gpu_hw.h
index fd909a995..0de994ad1 100644
--- a/src/core/gpu_hw.h
+++ b/src/core/gpu_hw.h
@@ -342,7 +342,7 @@ private:
     u32 bits = INVALID_DRAW_MODE_BITS;
   } m_draw_mode = {};
 
-  GPUTextureWindow m_texture_window_bits;
+  GPUTextureWindow m_texture_window_bits = {};
 
   std::unique_ptr<GPUPipeline> m_wireframe_pipeline;