diff --git a/ops/pipelines/depot.nix b/ops/pipelines/depot.nix
index 8c03217c1..91fb6269d 100644
--- a/ops/pipelines/depot.nix
+++ b/ops/pipelines/depot.nix
@@ -95,7 +95,7 @@ let
       ({
         command = "nix-instantiate -A ci.gcroot --add-root /nix/var/nix/gcroots/depot/canon";
         label = ":anchor:";
-        "if" = ''build.branch == "canon"'';
+        "if" = ''build.branch == "refs/heads/canon"'';
         depends_on = [{
           step = ":duck:";
           allow_failure = false;