diff --git a/bin/platformio-custom.py b/bin/platformio-custom.py
index bfcee897af..0f099c09ad 100644
--- a/bin/platformio-custom.py
+++ b/bin/platformio-custom.py
@@ -81,7 +81,7 @@ def esp32_create_combined_bin(source, target, env):
 
 if platform.name == "nordicnrf52":
     env.AddPostAction("$BUILD_DIR/${PROGNAME}.hex",
-                      env.VerboseAction(f"python3 ./bin/uf2conv.py $BUILD_DIR/firmware.hex -c -f 0xADA52840 -o $BUILD_DIR/firmware.uf2",
+                      env.VerboseAction(f"{sys.executable} ./bin/uf2conv.py $BUILD_DIR/firmware.hex -c -f 0xADA52840 -o $BUILD_DIR/firmware.uf2",
                                         "Generating UF2 file"))
 
 Import("projenv")