diff --git a/flake.nix b/flake.nix
index fc9b4a2c7..265374a25 100644
--- a/flake.nix
+++ b/flake.nix
@@ -38,6 +38,7 @@
               pname = "jujutsu";
               version = "unstable-${self.shortRev or "dirty"}";
               buildNoDefaultFeatures = true;
+              buildFeatures = ["jujutsu-lib/legacy-thrift"];
 
               src = self;