diff --git a/ch03-lists-tuples/e13b1_namedtuple_records.py b/ch03-lists-tuples/e13b1_namedtuple_records.py
index 967eaca..492bbc1 100755
--- a/ch03-lists-tuples/e13b1_namedtuple_records.py
+++ b/ch03-lists-tuples/e13b1_namedtuple_records.py
@@ -17,5 +17,5 @@ def format_sort_records(list_of_tuples):
     output = []
     template = '{last:10} {first:10} {distance:5.2f}'
     for person in sorted(list_of_tuples, key=operator.attrgetter('last', 'first')):
-        output.append(template.format(*(person._asdict())))
+        output.append(template.format(**(person._asdict())))
     return output
diff --git a/ch03-lists-tuples/e13b2_sorted_movies.py b/ch03-lists-tuples/e13b2_sorted_movies.py
index 58f3bcd..e188d3b 100755
--- a/ch03-lists-tuples/e13b2_sorted_movies.py
+++ b/ch03-lists-tuples/e13b2_sorted_movies.py
@@ -29,7 +29,7 @@ def sort_movies():
         output = []
         template = '{0:30} {1:3} {2:20}'
         for one_movie in sorted(MOVIES, key=operator.itemgetter(FIELDS[sort_by])):
-            output.append(template.format(*one_movie))
+            output.append(template.format(**one_movie))
         return output
 
     print(f'No such field {sort_by}')
diff --git a/ch03-lists-tuples/e13b3_sorted_movies_multifield.py b/ch03-lists-tuples/e13b3_sorted_movies_multifield.py
index c8f748d..dc3e8db 100755
--- a/ch03-lists-tuples/e13b3_sorted_movies_multifield.py
+++ b/ch03-lists-tuples/e13b3_sorted_movies_multifield.py
@@ -33,7 +33,7 @@ def sort_movies_multifield():
         template = '{0:30} {1:3} {2:20}'
         for one_movie in sorted(MOVIES, key=operator.itemgetter(*[FIELDS[field_name]
                                                                   for field_name in sort_by])):
-            output.append(template.format(*one_movie))
+            output.append(template.format(**one_movie))
         return output
 
     print(f'No such field {sort_by}')