diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 345e42d3e..ab56fd312 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -42,7 +42,7 @@ contributors and developers.
   [hledger-web dev demo](http://demo.hledger.org:5001)
   <br>
   [latest API docs](http://hledger.org/api),
-  [developer notes](http://joyful.com/darcsweb/darcsweb.cgi?r=hledger;a=plainblob;f=/NOTES),
+  [developer notes](http://joyful.com/darcsweb/darcsweb.cgi?r=hledger;a=plainblob;f=/NOTES.org),
   [haddock coverage](http://hledger.org/profs/haddock-coverage),
   [unit test coverage](http://hledger.org/profs/coverage/hpc_index_fun.html),
   [benchmark](http://hledger.org/profs/latest.bench),
diff --git a/Makefile b/Makefile
index aeddcd824..d7f4fa770 100644
--- a/Makefile
+++ b/Makefile
@@ -814,7 +814,7 @@ showunittestcoverage:
 
 # showerrors:
 # 	@echo Known errors:
-# 	@awk '/^** errors/, /^** / && !/^** errors/' NOTES | grep '^\*\*\* ' | tail +1
+# 	@awk '/^** errors/, /^** / && !/^** errors/' NOTES.org | grep '^\*\*\* ' | tail +1
 # 	@echo
 
 showunpushedchanges unpushed:
diff --git a/NOTES b/NOTES.org
similarity index 100%
rename from NOTES
rename to NOTES.org