diff --git a/hw/pxa2xx_lcd.c b/hw/pxa2xx_lcd.c
index 1640781..ffe7a56 100644
--- a/hw/pxa2xx_lcd.c
+++ b/hw/pxa2xx_lcd.c
@@ -696,7 +696,7 @@
     addr = (ram_addr_t) (fb - phys_ram_base);
     start = addr + s->yres * src_width;
     end = addr;
-    dirty[0] = dirty[1] = cpu_physical_memory_get_dirty(start, VGA_DIRTY_FLAG);
+    dirty[0] = dirty[1] = cpu_physical_memory_get_dirty(addr, VGA_DIRTY_FLAG);
     for (y = 0; y < s->yres; y ++) {
         new_addr = addr + src_width;
         for (x = addr + TARGET_PAGE_SIZE; x < new_addr;