diff --git a/src/core/gpu_sw.cpp b/src/core/gpu_sw.cpp
index 31d33ea4c..c56cddd0d 100644
--- a/src/core/gpu_sw.cpp
+++ b/src/core/gpu_sw.cpp
@@ -115,7 +115,7 @@ void GPU_SW::UpdateDisplay()
   }
   else
   {
-    CopyOut15Bit(m_vram.data(), VRAM_WIDTH, m_display_texture_buffer.data(), VRAM_WIDTH, VRAM_HEIGHT, VRAM_HEIGHT);
+    CopyOut15Bit(m_vram.data(), VRAM_WIDTH, m_display_texture_buffer.data(), VRAM_WIDTH, VRAM_WIDTH, VRAM_HEIGHT);
     m_host_display->UpdateTexture(m_display_texture.get(), 0, 0, VRAM_WIDTH, VRAM_HEIGHT,
                                   m_display_texture_buffer.data(), VRAM_WIDTH * sizeof(u32));
     m_host_display->SetDisplayTexture(m_display_texture->GetHandle(), VRAM_WIDTH, VRAM_HEIGHT, 0, 0, VRAM_WIDTH,