diff --git a/build2cmake/src/templates/metal/compile-metal.cmake b/build2cmake/src/templates/metal/compile-metal.cmake
index d7c7a365..adee369c 100644
--- a/build2cmake/src/templates/metal/compile-metal.cmake
+++ b/build2cmake/src/templates/metal/compile-metal.cmake
@@ -63,7 +63,7 @@ function(compile_metal_shaders TARGET_NAME METAL_SOURCES)
     
     add_custom_command(
         OUTPUT ${METALLIB_HEADER}
-        COMMAND ${Python_EXECUTABLE} ${METALLIB_TO_HEADER_SCRIPT} ${METALLIB_FILE} ${METALLIB_HEADER} ${TARGET_NAME}
+        COMMAND ${Python3_EXECUTABLE} ${METALLIB_TO_HEADER_SCRIPT} ${METALLIB_FILE} ${METALLIB_HEADER} ${TARGET_NAME}
         DEPENDS ${METALLIB_FILE} ${METALLIB_TO_HEADER_SCRIPT}
         COMMENT "Generating embedded Metal library header ${METALLIB_HEADER}"
         VERBATIM