diff --git a/docs/HISTORY.txt b/docs/HISTORY.txt
index be894c559..715372b07 100644
--- a/docs/HISTORY.txt
+++ b/docs/HISTORY.txt
@@ -4,6 +4,9 @@ Changelog (Pillow)
 2.2.0 (2013-10-01)
 ------------------
 
+- Use correct format character for C int type
+  [cgohlke]
+
 - Allocate enough memory to hold pointers in encode.c
   [cgohlke]