diff --git a/desmume/src/GPU.cpp b/desmume/src/GPU.cpp
index 5db3656d4..fc9aef630 100644
--- a/desmume/src/GPU.cpp
+++ b/desmume/src/GPU.cpp
@@ -3062,7 +3062,7 @@ void GPUEngineBase::_RenderLine_BGExtended(GPUEngineCompositorInfo &compInfo, co
 			{
 				const size_t vramPixel = (size_t)((u8 *)MMU_gpu_map(compInfo.renderState.selectedBGLayer->BMPAddress) - MMU.ARM9_LCD) / sizeof(u16);
 				
-				if (vramPixel > (GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_VRAM_BLOCK_LINES * 4))
+				if (vramPixel >= (GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_VRAM_BLOCK_LINES * 4))
 				{
 					outUseCustomVRAM = false;
 				}