diff --git a/CITATION.cff b/CITATION.cff
new file mode 100644
index 00000000..83718ad8
--- /dev/null
+++ b/CITATION.cff
@@ -0,0 +1,9 @@
+cff-version: 1.2.0
+message: If you use this software, please cite it as below.
+title: attrs
+type: software
+authors:
+  - given-names: Hynek
+    family-names: Schlawack
+    email: hs@ox.cx
+doi: 10.5281/zenodo.6925130
diff --git a/MANIFEST.in b/MANIFEST.in
index 3d68bf9c..6dbe985e 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,4 @@
-include LICENSE *.rst *.toml *.yml *.yaml *.ini
+include LICENSE *.rst *.toml *.yml *.yaml *.ini CITATION.cff
 graft .github
 
 # Stubs