diff -Nru mpfit-1.82+2013.08.14/debian/changelog mpfit-1.82+2013.08.14/debian/changelog
--- mpfit-1.82+2013.08.14/debian/changelog	2015-07-21 07:57:08.000000000 +0000
+++ mpfit-1.82+2013.08.14/debian/changelog	2015-11-14 17:26:23.000000000 +0000
@@ -1,3 +1,9 @@
+mpfit (1.82+2013.08.14-3) unstable; urgency=low
+
+  * Make documentation build reproducible
+
+ -- Ole Streicher <olebole@debian.org>  Sat, 14 Nov 2015 18:26:20 +0100
+
 mpfit (1.82+2013.08.14-2) unstable; urgency=low
 
   * Correct dependencies in unit tests
diff -Nru mpfit-1.82+2013.08.14/debian/idldoc.py mpfit-1.82+2013.08.14/debian/idldoc.py
--- mpfit-1.82+2013.08.14/debian/idldoc.py	2015-06-22 07:31:30.000000000 +0000
+++ mpfit-1.82+2013.08.14/debian/idldoc.py	2015-11-14 13:28:34.000000000 +0000
@@ -87,7 +87,7 @@
 os.mkdir('html')
 files = list()
 for l in open('debian/install').readlines():
-    files += glob.glob(l.split()[0])
+    files += sorted(glob.glob(l.split()[0]))
 
 index = list()
 for filename in files: