diff --git a/scripts/config.py b/scripts/config.py
index 7a68d0b547..2f79978b74 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -226,9 +226,9 @@ def is_seamless_alt(name):
     an implementation of the relevant functions and an xxx_alt.h header.
     """
     if name in (
-        'MBEDTLS_PLATFORM_GMTIME_R_ALT',
-        'MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT',
-        'MBEDTLS_PLATFORM_ZEROIZE_ALT',
+            'MBEDTLS_PLATFORM_GMTIME_R_ALT',
+            'MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT',
+            'MBEDTLS_PLATFORM_ZEROIZE_ALT',
     ):
         # Similar to non-platform xxx_ALT, requires platform_alt.h
         return False