diff --git a/CMakeLists.txt b/CMakeLists.txt
index c05623df32b97f959fe6d0b24b80316d0dbf23f9..aec0ac83a94e1331dc82b71624dfa7a38cae4779 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -625,9 +625,9 @@ if (MORSE_DISTRIB_DIR OR EXISTS "${CMAKE_SOURCE_DIR}/cmake_modules/")
                     " - starpu_mpi_data_register() test fails in StarPU${ColourReset}")
                     message("-- ${Red}Check in CMakeFiles/CMakeError.log to figure out why it fails${ColourReset}")
                 endif()
-		unset(STARPU_MPI_COMM_RANK_FOUND CACHE)
-		check_function_exists(starpu_mpi_comm_rank STARPU_MPI_COMM_RANK_FOUND)
-		if ( STARPU_MPI_COMM_RANK_FOUND )
+                unset(STARPU_MPI_COMM_RANK_FOUND CACHE)
+                check_function_exists(starpu_mpi_comm_rank STARPU_MPI_COMM_RANK_FOUND)
+                if ( STARPU_MPI_COMM_RANK_FOUND )
                     message("-- ${Blue}Add definition HAVE_STARPU_MPI_COMM_RANK - Activate"
                     "use of starpu_mpi_comm_rank() in Chameleon with StarPU${ColourReset}")
                     add_definitions(-DHAVE_STARPU_MPI_COMM_RANK)