diff --git a/hw/display/bcm2835_fb.c b/hw/display/bcm2835_fb.c
index ac17c472a596f06d1ee150c530d303b09ea27444..82d3071d3eaba03891186fe1586ba77fcef9f66d 100644
--- a/hw/display/bcm2835_fb.c
+++ b/hw/display/bcm2835_fb.c
@@ -145,7 +145,7 @@ static bool fb_use_offsets(BCM2835FBConfig *config)
      * viewport size is larger than the physical screen. (It doesn't
      * prevent the guest setting this silly viewport setting, though...)
      */
-    return config->xres_virtual > config->xres &&
+    return config->xres_virtual > config->xres ||
         config->yres_virtual > config->yres;
 }