diff --git a/.taskcluster.yml b/.taskcluster.yml
index 50387e5ac9b..511bb6ee02e 100644
--- a/.taskcluster.yml
+++ b/.taskcluster.yml
@@ -27,9 +27,14 @@ tasks:
         scopes:
           - "assume:repo:github.com/servo/servo:branch:${event.ref[11:]}"
         routes:
-          # len("refs/heads/") == 11, so event.ref[11:] is the branch name
-          - "tc-treeherder.v2._/servo-${event.ref[11:]}.${event.after}"
-          - "tc-treeherder-staging.v2._/servo-${event.ref[11:]}.${event.after}"
+          $let:
+            treeherder_repo:
+              $if: "event.ref[:15] != 'refs/heads/try-'"
+              then: "servo-${event.ref[11:]}"
+              else: "servo-try"
+          in:
+            - "tc-treeherder.v2._/${treeherder_repo}.${event.after}"
+            - "tc-treeherder-staging.v2._/${treeherder_repo}.${event.after}"
         extra:
           treeherder:
             machine: {platform: Linux}