diff --git a/scripts/mbedtls_dev/bignum_data.py b/scripts/mbedtls_dev/bignum_data.py
index 6f132a6b3..897e31989 100644
--- a/scripts/mbedtls_dev/bignum_data.py
+++ b/scripts/mbedtls_dev/bignum_data.py
@@ -107,7 +107,7 @@ INPUTS_DEFAULT = [
         ]
 
 ADD_SUB_DATA = [
-    "0", "1", "3", "f", "fe", "ff", "100", "ff00", 
+    "0", "1", "3", "f", "fe", "ff", "100", "ff00",
     "fffe", "ffff", "10000", # 2^16 - 1, 2^16, 2^16 + 1
     "fffffffe", "ffffffff", "100000000", # 2^32 - 1, 2^32, 2^32 + 1
     "1f7f7f7f7f7f7f",