diff --git a/wyk/06_Naiwny_klasyfikator_bayesowski.ipynb b/wyk/06_Naiwny_klasyfikator_bayesowski.ipynb
index b07561f..e23bbe9 100644
--- a/wyk/06_Naiwny_klasyfikator_bayesowski.ipynb
+++ b/wyk/06_Naiwny_klasyfikator_bayesowski.ipynb
@@ -29,7 +29,11 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
    "source": [
     "<img style=\"float: right;\" src=\"https://upload.wikimedia.org/wikipedia/commons/d/d4/Thomas_Bayes.gif\">\n",
     "\n",
@@ -1441,7 +1445,7 @@
   },
   "livereveal": {
    "start_slideshow_at": "selected",
-   "theme": "amu"
+   "theme": "white"
   }
  },
  "nbformat": 4,