diff --git a/ports/zephyr-cp/boards/native/native_sim/circuitpython.toml b/ports/zephyr-cp/boards/native/native_sim/circuitpython.toml
index 3272dd4c5f319..fbda7c563b835 100644
--- a/ports/zephyr-cp/boards/native/native_sim/circuitpython.toml
+++ b/ports/zephyr-cp/boards/native/native_sim/circuitpython.toml
@@ -1 +1 @@
-CIRCUITPY_BUILD_EXTENSIONS = ["elf"]
+CIRCUITPY_BUILD_EXTENSIONS = ["elf", "exe"]