diff --git a/ortools/linear_solver/samples/SimpleMipProgram.cs b/ortools/linear_solver/samples/SimpleMipProgram.cs
index 29f7dd1512..ff28e7758a 100644
--- a/ortools/linear_solver/samples/SimpleMipProgram.cs
+++ b/ortools/linear_solver/samples/SimpleMipProgram.cs
@@ -12,8 +12,10 @@
 // limitations under the License.
 
 // [START program]
+// [START import]
 using System;
 using Google.OrTools.LinearSolver;
+// [END import]
 
 public class SimpleMipProgram
 {
diff --git a/ortools/linear_solver/samples/SimpleMipProgram.java b/ortools/linear_solver/samples/SimpleMipProgram.java
index 71fa9204fc..1b1f5b0bed 100644
--- a/ortools/linear_solver/samples/SimpleMipProgram.java
+++ b/ortools/linear_solver/samples/SimpleMipProgram.java
@@ -13,10 +13,12 @@
 
 // Minimal example to call the MIP solver.
 // [START program]
+// [START import]
 import com.google.ortools.linearsolver.MPConstraint;
 import com.google.ortools.linearsolver.MPObjective;
 import com.google.ortools.linearsolver.MPSolver;
 import com.google.ortools.linearsolver.MPVariable;
+// [END import]
 
 /** Minimal Mixed Integer Programming example to showcase calling the solver. */
 public class SimpleMipProgram {
diff --git a/ortools/linear_solver/samples/simple_mip_program.cc b/ortools/linear_solver/samples/simple_mip_program.cc
index 7f6dffc869..e9dfbea18a 100644
--- a/ortools/linear_solver/samples/simple_mip_program.cc
+++ b/ortools/linear_solver/samples/simple_mip_program.cc
@@ -13,7 +13,9 @@
 
 // Mixed Integer programming example that shows how to use the API.
 // [START program]
+// [START import]
 #include "ortools/linear_solver/linear_solver.h"
+// [END import]
 
 namespace operations_research {
 void simple_mip_program() {
diff --git a/ortools/linear_solver/samples/simple_mip_program.py b/ortools/linear_solver/samples/simple_mip_program.py
index 2db6fc4edd..9909ac9d6f 100644
--- a/ortools/linear_solver/samples/simple_mip_program.py
+++ b/ortools/linear_solver/samples/simple_mip_program.py
@@ -12,8 +12,10 @@
 # limitations under the License.
 """Integer programming examples that show how to use the APIs."""
 # [START program]
+# [START import]
 from __future__ import print_function
 from ortools.linear_solver import pywraplp
+# [END import]
 
 
 def main():