diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index efa211898fe60204a424b98cdb9295ea2ee99356..6abea32be5e83b80346f5c79b0a966c66c194a7c 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -245,7 +245,7 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 		goto out_unref;
 	}
 	info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base;
-	info->apertures->ranges[0].size = rdev->mc.real_vram_size;
+	info->apertures->ranges[0].size = rdev->mc.aper_size;
 
 	info->fix.mmio_start = 0;
 	info->fix.mmio_len = 0;