diff --git a/Exercises-2.ipynb b/Exercises-2.ipynb
index 2dfed69..834e9a3 100644
--- a/Exercises-2.ipynb
+++ b/Exercises-2.ipynb
@@ -369,7 +369,7 @@
       }
     }, 
     {
-      "source": "### Plot the number of \"Batman\" characters each decade.", 
+      "source": "### Plot the number of \"Hamlet\" characters each decade.", 
       "cell_type": "markdown", 
       "metadata": {
         "collapsed": true
diff --git a/Solutions-2.ipynb b/Solutions-2.ipynb
index 9402453..149d648 100644
--- a/Solutions-2.ipynb
+++ b/Solutions-2.ipynb
@@ -435,7 +435,7 @@
     }
    ],
    "source": [
-    "# Plot the number of \"Batman\" characters each decade.\n",
+    "# Plot the number of \"Hamlet\" characters each decade.\n",
     "\n",
     "c = cast\n",
     "c = c[c.character == 'Hamlet']\n",