diff --git a/hosts/marvin/services/git.nix b/hosts/marvin/services/git.nix
index 5ac130f7..3457d098 100644
--- a/hosts/marvin/services/git.nix
+++ b/hosts/marvin/services/git.nix
@@ -91,6 +91,10 @@ in
         REPO_INDEXER_TYPE = "bleve";
         REPO_INDEXER_PATH = "indexers/repos.bleve";
       };
+      repository = {
+        # Don't store 100's of GB of source archives for no reason
+        DISABLE_DOWNLOAD_SOURCE_ARCHIVES = true;
+      };
       session = {
         PROVIDER = "db";
         COOKIE_SECURE = true;