diff --git a/package.nix b/package.nix
index e29b4a8..659c30a 100644
--- a/package.nix
+++ b/package.nix
@@ -28,7 +28,7 @@ buildNpmPackage {
   meta = {
     description = "NestJS API to store info about shows on a MongoDB database";
     homepage = "https://git.everest.tailscale/Toast/shows-api";
-    sourceProvenance = lib.sourceTypes.fromSource;
+    sourceProvenance = [lib.sourceTypes.fromSource];
     mainProgram = "shows-api";
   };
 }