diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e188124c43..3fa4b303c4f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -452,6 +452,7 @@ if (NOT WITH_MPIEXEC)
   set(WITH_MPIEXEC mpiexec)
 endif()
 set(MPIEXEC "${WITH_MPIEXEC}")
+cmake_print_variables(MPIEXEC)
 configure_file(
   ${CMAKE_CURRENT_SOURCE_DIR}/tests/cunit/run_tests.sh.in
   ${CMAKE_CURRENT_BINARY_DIR}/tests/cunit/run_tests.sh @ONLY)