diff --git a/pep-0552.txt b/pep-0552.txt
index 0a01f6d02..dd5a96b4e 100644
--- a/pep-0552.txt
+++ b/pep-0552.txt
@@ -73,7 +73,7 @@ invalidation will be done by comparing the metadata of the source file with that
 in the header.
 
 If the lowest bit of the bit field is set, the pyc is a hash-based pyc. We call
-the second lowest bit the ``check_source`` flag. Following the bitset is a
+the second lowest bit the ``check_source`` flag. Following the bit field is a
 64-bit hash of the source file. We will use a SipHash_ with a hardcoded key of
 the contents of the source file. Another a fast hash like MD5 or BLAKE2_ would
 also work. We choose SipHash because Python already has a builtin implementation