diff --git a/src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/cmake/Modules/VolkPython.cmake b/src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/cmake/Modules/VolkPython.cmake
index b435b5901..13b8a2759 100644
--- a/src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/cmake/Modules/VolkPython.cmake
+++ b/src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/cmake/Modules/VolkPython.cmake
@@ -145,6 +145,7 @@ else()
                 endif()
                 volk_python_check_module("mako >= 0.4.2" mako "mako.__version__ >= '0.4.2'" MAKO_FOUND)
                 if(NOT MAKO_FOUND)
+                    unset(PYTHON_EXECUTABLE)
                     find_program(PYTHON_EXECUTABLE NAMES python3 python)
                     if(PYTHON_EXECUTABLE)
                         set(PYTHONINTERP_FOUND TRUE)