--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2020-01-29 11:33:20.626556034 +0100
@@ -0,0 +1,37 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2020-01-29
+
+--- pikepdf-1.10.0+dfsg.orig/docs/topics/images.rst
++++ pikepdf-1.10.0+dfsg/docs/topics/images.rst
+@@ -36,7 +36,7 @@ dictionaries.
+ 
+     In [1]: pdfimage = PdfImage(rawimage)
+ 
+-    In [1]: pdfimage
++    In [1]: type(pdfimage)
+ 
+ In Jupyter (or IPython with a suitable backend) the image will be
+ displayed.
+@@ -84,7 +84,7 @@ You can also retrieve the image as a Pil
+ 
+ .. ipython::
+ 
+-    In [1]: pdfimage.as_pil_image()
++    In [1]: type(pdfimage.as_pil_image())
+ 
+ Another way to view the image is using Pillow's ``Image.show()`` method.
+ 
+--- pikepdf-1.10.0+dfsg.orig/setup.py
++++ pikepdf-1.10.0+dfsg/setup.py
+@@ -42,8 +42,8 @@ if 'bsd' in sys.platform:
+ ext_modules = [
+     Extension(
+         'pikepdf._qpdf',
+-        glob('src/qpdf/*.cpp'),
+-        depends=glob('src/qpdf/*.h'),
++        sorted(glob('src/qpdf/*.cpp')),
++        depends=sorted(glob('src/qpdf/*.h')),
+         include_dirs=[
+             # Path to pybind11 headers
+             get_pybind_include(),
--- a/debian/patches/series	2020-01-29 11:09:31.619837542 +0100
--- b/debian/patches/series	2020-01-29 11:19:45.147172680 +0100
@@ -3,3 +3,4 @@
 disable-test_docinfo_problems.patch
 drop-pybind11-from-setup.py.patch
 disable-test_icc_extract.patch
+reproducible-build.patch