diff --git a/architecture/README.md b/architecture/README.md
index eefadfc..de9596b 100644
--- a/architecture/README.md
+++ b/architecture/README.md
@@ -11,7 +11,7 @@
     - `bin(14)` ➔ `'0b1110'`
     - `np.iinfo(np.int32)` ➔ `iinfo(min=-2147483648, max=2147483647, dtype=int32)`
     - Python integers, as opposed to numpy integer types, are represented with a flexible number of bits: `sys.int_info` ➔ `bits_per_digit=30, sizeof_digit=4, default_max_str_digits=4300, str_digits_check_threshold=640`
-      - they are called "long" or "sperlong" integers, because they can have arbitrary size. Low level implementation explained:
+      - they are called "long" or "superlong" integers, because they can have arbitrary size. Low level implementation explained:
         - [Arpit Bhayani's blog](https://arpitbhayani.me/blogs/long-integers-python/)
         - [Artem Golubin's blog](https://rushter.com/blog/python-integer-implementation/)