diff --git a/configs/ext/config_tfm.h b/configs/ext/config_tfm.h
new file mode 100644
index 0000000..60d855e
--- /dev/null
+++ b/configs/ext/config_tfm.h
@@ -0,0 +1,13 @@
+/*
+ *  Empty placeholder
+ *
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+/*
+ * This file is intentionally empty.
+ *
+ * Having an empty file here allows us to build the TF-M config, which references this file,
+ * without making any changes to the TF-M config.
+ */