diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp
index a4dfb7e43..180c60514 100644
--- a/src/core/hw/gpu.cpp
+++ b/src/core/hw/gpu.cpp
@@ -187,6 +187,14 @@ inline void Write(u32 addr, const T data) {
                     u32 output_width = config.texture_copy.output_width * 16;
                     u32 output_gap = config.texture_copy.output_gap * 16;
 
+                    if (input_width == 0) {
+                        input_width = 1024 * 16;
+                    }
+
+                    if (output_width == 0) {
+                        output_width = 1024 * 16;
+                    }
+
                     size_t contiguous_input_size = config.texture_copy.size / input_width * (input_width + input_gap);
                     Memory::RasterizerFlushRegion(config.GetPhysicalInputAddress(), static_cast<u32>(contiguous_input_size));