diff --git a/db/license.rec b/db/license.rec
index 1b81fae..45404d6 100644
--- a/db/license.rec
+++ b/db/license.rec
@@ -154,3 +154,12 @@ author: dozens
 source: https://dozens.itch.io/no-one-ever-leaves
 file: haunted.txt
 added: 2025-03-16
+
+id: 16
+name: dayenu
+base: original
+type: open
+author: nbsp
+source: https://tilde.town/~nbsp/dayenu.txt
+file: dayenu.txt
+added: 2025-04-06
diff --git a/src/dayenu.txt b/src/dayenu.txt
new file mode 100644
index 0000000..7d224cf
--- /dev/null
+++ b/src/dayenu.txt
@@ -0,0 +1,24 @@
+Dayenu Public License
+
+Copyright (c) {{author}}
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. If They had used the software, but did not make any changes to it — dayenu!
+
+2. If They had made changes to the software, but did not redistribute the source
+   code — dayenu!
+
+3. If They had redistributed the source code, but did not retain the above
+   copyright notice — dayenu!
+
+4. If They had retained the copyright notice, but not this list of license
+   conditions — dayenu!
+
+5. If They had retained this list of license conditions, but did not license the
+   derivative work under the same license — dayenu!
+
+DAY-DAY-YENU, DAY-DAY-YENU, DAY-DAY-YENU, DAYENU DAYENU, DAYENU—
+DAY-DAY-YENU, DAY-DAY-YENU, DAY-DAY-YENU, DAYENU DAYENU!