diff --git a/lib/licenses.nix b/lib/licenses.nix
index 35fcbd072af1..9546f83844c3 100644
--- a/lib/licenses.nix
+++ b/lib/licenses.nix
@@ -72,6 +72,11 @@ rec {
     fullName = "Creative Commons Attribution 3.0";
   };
 
+  cc-by-sa-30 = spdx {
+    shortName = "CC-BY-SA-3.0";
+    fullName = "Creative Commons Attribution Share Alike 3.0";
+  };
+
   cc-by-40 = spdx {
     shortName = "CC-BY-4.0";
     fullName = "Creative Commons Attribution 4.0";