diff --git a/Misc/ACKS b/Misc/ACKS
index 70a42e20136..37835af70a6 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -502,6 +502,7 @@ Jan Kaliszewski
 Peter van Kampen
 Rafe Kaplan
 Jacob Kaplan-Moss
+Per Øyvind Karlsen
 Lou Kates
 Hiroaki Kawai
 Sebastien Keim
diff --git a/Misc/NEWS b/Misc/NEWS
index f01b7e24684..c6f46a8d021 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -400,6 +400,7 @@ Library
 -------
 
 - Issue #6715: Add a module 'lzma' for compression using the LZMA algorithm.
+  Thanks to Per Øyvind Karlsen for the initial implementation.
 
 - Issue #13487: Make inspect.getmodule robust against changes done to
   sys.modules while it is iterating over it.
diff --git a/Modules/_lzmamodule.c b/Modules/_lzmamodule.c
index 7371517246e..a69377ce25a 100644
--- a/Modules/_lzmamodule.c
+++ b/Modules/_lzmamodule.c
@@ -1,4 +1,9 @@
-/* _lzma - Low-level Python interface to liblzma. */
+/* _lzma - Low-level Python interface to liblzma.
+
+   Initial implementation by Per Øyvind Karlsen.
+   Rewritten by Nadeem Vawda.
+
+*/
 
 #define PY_SSIZE_T_CLEAN