diff --git a/edX Lightning Talk.ipynb b/edX Lightning Talk.ipynb
index 35da519..7e04310 100644
--- a/edX Lightning Talk.ipynb	
+++ b/edX Lightning Talk.ipynb	
@@ -621,7 +621,7 @@
     }
    },
    "source": [
-    "## Swaping matching syntax subtrees between two corpora ##"
+    "## Swapping matching syntax subtrees between two corpora ##"
    ]
   },
   {