diff --git a/.cmake/Modules/Cram.cmake b/.cmake/Modules/Cram.cmake
index 8fc8778..0d0c06b 100644
--- a/.cmake/Modules/Cram.cmake
+++ b/.cmake/Modules/Cram.cmake
@@ -46,7 +46,15 @@ if (WIN32)
   endif ()
 endif ()
 
-execute_process (COMMAND python -m cram -v ${CRAM_OPTS} "${CRAM_PATH}" TIMEOUT 60 RESULT_VARIABLE RES)
+execute_process (COMMAND python3 --version TIMEOUT 1 RESULT_VARIABLE PYTHON3_RES)
+
+if (NOT PYTHON3_RES STREQUAL "0")
+  set (PYTHON "python")
+else ()
+  set (PYTHON "python3")
+endif ()
+
+execute_process (COMMAND ${PYTHON} -m cram -v ${CRAM_OPTS} "${CRAM_PATH}" TIMEOUT 60 RESULT_VARIABLE RES)
 
 if (NOT RES STREQUAL "0")
   message (FATAL_ERROR "Cram tests failed")