diff --git a/src/qt/qt_rendererstack.cpp b/src/qt/qt_rendererstack.cpp
index c736baa5d..78e8e99d8 100644
--- a/src/qt/qt_rendererstack.cpp
+++ b/src/qt/qt_rendererstack.cpp
@@ -240,7 +240,11 @@ void RendererStack::blit(int x, int y, int w, int h)
     sw = this->w = w;
     sh = this->h = h;
     auto imagebits = imagebufs[currentBuf].get();
-    video_copy(imagebits + y * (2048 * 4) + x * 4, &(buffer32->line[y][x]), h * 2048 * sizeof(uint32_t));
+    for (int y1 = y; y1 < (y + h - 1); y1++)
+    {
+        auto scanline = imagebits + (y1 * (2048) * 4) + (x * 4);
+        video_copy(scanline, &(buffer32->line[y1][x]), w * 4);
+    }
 
     if (screenshots)
     {