diff --git a/samples/cpp/tutorial_code/core/AddingImages/AddingImages.cpp b/samples/cpp/tutorial_code/core/AddingImages/AddingImages.cpp
index 491ae7ad9e..d8024cd2b5 100644
--- a/samples/cpp/tutorial_code/core/AddingImages/AddingImages.cpp
+++ b/samples/cpp/tutorial_code/core/AddingImages/AddingImages.cpp
@@ -27,7 +27,7 @@ int main( void )
    std::cin>>input;
 
    // We use the alpha provided by the user if it is between 0 and 1
-   if( alpha >= 0 && alpha <= 1 )
+   if( input >= 0 && input <= 1 )
      { alpha = input; }
 
    //![load]