diff --git a/pep-3147.txt b/pep-3147.txt
index f4929da29..076383b2f 100644
--- a/pep-3147.txt
+++ b/pep-3147.txt
@@ -101,9 +101,10 @@ Python's import machinery is extended to write and search for byte
 code cache files in a single directory inside every Python package
 directory.  This directory will be called `__pycache__`.
 
-Further, pyc files will contain a magic string that differentiates the
-Python version they were compiled for.  This allows multiple byte
-compiled cache files to co-exist for a single Python source file.
+Further, pyc file names will contain a magic string (tag) that
+differentiates the Python version they were compiled for.  This allows
+multiple byte compiled cache files to co-exist for a single Python
+source file.
 
 This scheme has the added benefit of reducing the clutter in a Python
 package directory.