diff --git a/ortools/algorithms/samples/knapsack.py b/ortools/algorithms/samples/knapsack.py
index 1bcf991729..c7102c73eb 100644
--- a/ortools/algorithms/samples/knapsack.py
+++ b/ortools/algorithms/samples/knapsack.py
@@ -39,9 +39,9 @@ def main():
     ]
     weights = [
         # fmt: off
-    [7, 0, 30, 22, 80, 94, 11, 81, 70, 64, 59, 18, 0, 36, 3, 8, 15, 42, 9, 0,
-     42, 47, 52, 32, 26, 48, 55, 6, 29, 84, 2, 4, 18, 56, 7, 29, 93, 44, 71, 3,
-     86, 66, 31, 65, 0, 79, 20, 65, 52, 13],
+      [7, 0, 30, 22, 80, 94, 11, 81, 70, 64, 59, 18, 0, 36, 3, 8, 15, 42, 9, 0,
+       42, 47, 52, 32, 26, 48, 55, 6, 29, 84, 2, 4, 18, 56, 7, 29, 93, 44, 71,
+       3, 86, 66, 31, 65, 0, 79, 20, 65, 52, 13],
         # fmt: on
     ]
     capacities = [850]
diff --git a/ortools/algorithms/samples/simple_knapsack_program.py b/ortools/algorithms/samples/simple_knapsack_program.py
index 4d6fa88e57..20fa49b1d7 100644
--- a/ortools/algorithms/samples/simple_knapsack_program.py
+++ b/ortools/algorithms/samples/simple_knapsack_program.py
@@ -31,7 +31,7 @@ def main():
     # [START data]
     weights = [
         # fmt:off
-    [565, 406, 194, 130, 435, 367, 230, 315, 393, 125, 670, 892, 600, 293, 712, 147, 421, 255],
+      [565, 406, 194, 130, 435, 367, 230, 315, 393, 125, 670, 892, 600, 293, 712, 147, 421, 255],
         # fmt:on
     ]
     capacities = [850]