diff --git a/samples/cpp/tutorial_code/gpu/gpu-thrust-interop/Thrust_interop.hpp b/samples/cpp/tutorial_code/gpu/gpu-thrust-interop/Thrust_interop.hpp
index 7e880b88eb..85397206b5 100644
--- a/samples/cpp/tutorial_code/gpu/gpu-thrust-interop/Thrust_interop.hpp
+++ b/samples/cpp/tutorial_code/gpu/gpu-thrust-interop/Thrust_interop.hpp
@@ -27,7 +27,7 @@ template<typename T> struct step_functor : public thrust::unary_function<int, in
         int operator()(int x) const
     {
         int row = x / columns;
-        int idx = (row * step) + (x % columns)*channels; 
+        int idx = (row * step) + (x % columns)*channels;
         return idx;
     }
 };