diff --git a/slides/cse4562sp2018/2018-01-31-SQL+Physical.html b/slides/cse4562sp2018/2018-01-31-SQL+Physical.html
index 26148fc3..5845f396 100644
--- a/slides/cse4562sp2018/2018-01-31-SQL+Physical.html
+++ b/slides/cse4562sp2018/2018-01-31-SQL+Physical.html
@@ -280,7 +280,7 @@
 
   with open('Trees.csv', 'r') as f:
     for line in f:
-      attributes = split(",", line);
+      fields = split(",", line);
       if(fields[30] == 'Brooklyn'):
         print(fields[0]);
           </code></pre>
@@ -371,8 +371,8 @@
           <pre><code class="python">
   with db_open('Trees') as data:
     for record in data:
-      if(records['BORONAME'] == 'Brooklyn'):
-        print(fields['TREE_ID']);
+      if(record['BORONAME'] == 'Brooklyn'):
+        print(record['TREE_ID']);
           </code></pre>
         </section>
       </section>