diff --git a/Kinetic_data_structures/examples/Polynomial_kernel/solve_polynomial.C b/Kinetic_data_structures/examples/Polynomial_kernel/solve_polynomial.cpp
similarity index 100%
rename from Kinetic_data_structures/examples/Polynomial_kernel/solve_polynomial.C
rename to Kinetic_data_structures/examples/Polynomial_kernel/solve_polynomial.cpp