diff --git a/bazelrc/bazel-0.15.0.bazelrc b/bazelrc/bazel-0.15.0.bazelrc
index 3b38fc5..8e05108 100644
--- a/bazelrc/bazel-0.15.0.bazelrc
+++ b/bazelrc/bazel-0.15.0.bazelrc
@@ -91,6 +91,7 @@
 # Results UI.
 build:results --bes_backend="buildeventservice.googleapis.com"
 build:results --bes_timeout=60s
+build:results --tls_enabled
 
 # If the upload to BES fails, the build will fail.
 build:results --bes_best_effort=false
diff --git a/release/bazelrc.tpl b/release/bazelrc.tpl
index db08580..2b12c76 100644
--- a/release/bazelrc.tpl
+++ b/release/bazelrc.tpl
@@ -80,6 +80,7 @@
 # Results UI.
 build:results --bes_backend="buildeventservice.googleapis.com"
 build:results --bes_timeout=60s
+build:results --tls_enabled
 
 # Output BES results url
 build:results --bes_results_url="https://source.cloud.google.com/results/invocations/"