diff --git a/MANIFEST.in b/MANIFEST.in
index 3e3893134850f8f7d10e6d319eb2db0dba20d413..0872efdcd679f24e3d74fd7007451bcab9d594f4 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +1,2 @@
-recursive-include tinydtls *.h LICENSE ABOUT.md configure.ac CONTRIBUTING.md README Makefile.in
+recursive-include tinydtls *.h LICENSE ABOUT.md configure.ac CONTRIBUTING.md README Makefile.in doc/Doxyfile.in
+include dtls.pyx