diff --git a/.github/bors.toml b/.github/bors.toml
index 39ad604272..9725473118 100644
--- a/.github/bors.toml
+++ b/.github/bors.toml
@@ -1,4 +1,5 @@
+block_labels = ["S-blocked"]
 delete_merged_branches = true
 status = [
   "continuous-integration/travis-ci/push",
-]
\ No newline at end of file
+]