diff --git a/components/esptool_py/flash_encrypted_project_args.in b/components/esptool_py/flash_encrypted_project_args.in
index db16bc6cd..a1875e69e 100644
--- a/components/esptool_py/flash_encrypted_project_args.in
+++ b/components/esptool_py/flash_encrypted_project_args.in
@@ -1,3 +1,3 @@
 --encrypt ${ESPTOOLPY_FLASH_PROJECT_OPTIONS}
-$<JOIN:$<TARGET_PROPERTY:flash_project_args_target,FLASH_PROJECT_ARGS>,
+$<JOIN:${FLASH_PROJECT_ARGS},
 >