diff --git a/ortools/linear_solver/samples/LinearProgrammingExample.cs b/ortools/linear_solver/samples/LinearProgrammingExample.cs
index 9590eda793..25ed9a0c35 100644
--- a/ortools/linear_solver/samples/LinearProgrammingExample.cs
+++ b/ortools/linear_solver/samples/LinearProgrammingExample.cs
@@ -12,8 +12,10 @@
 // limitations under the License.
 
 // [START program]
+// [START import]
 using System;
 using Google.OrTools.LinearSolver;
+// [END import]
 
 public class LinearProgrammingExample
 {
diff --git a/ortools/linear_solver/samples/LinearProgrammingExample.java b/ortools/linear_solver/samples/LinearProgrammingExample.java
index 09412a544a..97e5b0fc6e 100644
--- a/ortools/linear_solver/samples/LinearProgrammingExample.java
+++ b/ortools/linear_solver/samples/LinearProgrammingExample.java
@@ -13,12 +13,13 @@
 
 // [START program]
 package com.google.ortools.linearsolver.samples;
-
+// [START import]
 import com.google.ortools.Loader;
 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]
 
 /** Simple linear programming example.*/
 public class LinearProgrammingExample {
diff --git a/ortools/linear_solver/samples/SimpleLpProgram.cs b/ortools/linear_solver/samples/SimpleLpProgram.cs
index e99d6ba2d9..ed1e95f104 100644
--- a/ortools/linear_solver/samples/SimpleLpProgram.cs
+++ b/ortools/linear_solver/samples/SimpleLpProgram.cs
@@ -13,8 +13,10 @@
 
 // Minimal example to call the GLOP solver.
 // [START program]
+// [START import]
 using System;
 using Google.OrTools.LinearSolver;
+// [END import]
 
 public class SimpleLpProgram
 {