diff --git a/.kokoro/build-with-appengine.sh b/.kokoro/build-with-appengine.sh
index 0e925eaf4b..e235cfe896 100755
--- a/.kokoro/build-with-appengine.sh
+++ b/.kokoro/build-with-appengine.sh
@@ -62,6 +62,19 @@ gcloud app deploy --version $GAE_VERSION --no-promote --quiet
 
 # Install dependencies and run tests
 npm install
+
+# If tests are running against master, configure Build Cop
+# to open issues on failures:
+if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]]; then
+	export MOCHA_REPORTER_OUTPUT=sponge_log.xml
+	export MOCHA_REPORTER=xunit
+	cleanup() {
+	chmod +x $KOKORO_GFILE_DIR/linux_amd64/buildcop
+	$KOKORO_GFILE_DIR/linux_amd64/buildcop
+	}
+	trap cleanup EXIT HUP
+fi
+
 npm test
 
 exit $?
diff --git a/.kokoro/build-with-run.sh b/.kokoro/build-with-run.sh
index d861559548..31d3b524c4 100755
--- a/.kokoro/build-with-run.sh
+++ b/.kokoro/build-with-run.sh
@@ -58,5 +58,18 @@ set +x
 # Install dependencies and run Nodejs tests.
 export NODE_ENV=development
 npm install
+
+# If tests are running against master, configure Build Cop
+# to open issues on failures:
+if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]]; then
+	export MOCHA_REPORTER_OUTPUT=sponge_log.xml
+	export MOCHA_REPORTER=xunit
+	cleanup() {
+	chmod +x $KOKORO_GFILE_DIR/linux_amd64/buildcop
+	$KOKORO_GFILE_DIR/linux_amd64/buildcop
+	}
+	trap cleanup EXIT HUP
+fi
+
 npm test
 npm run --if-present e2e-test
diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index 56ee3b1fae..4b6cc25d22 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -86,6 +86,18 @@ export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/secrets-key.json
 gcloud auth activate-service-account --key-file "$GOOGLE_APPLICATION_CREDENTIALS"
 gcloud config set project $GCLOUD_PROJECT
 
+# If tests are running against master, configure Build Cop
+# to open issues on failures:
+if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]]; then
+	export MOCHA_REPORTER_OUTPUT=sponge_log.xml
+	export MOCHA_REPORTER=xunit
+	cleanup() {
+	chmod +x $KOKORO_GFILE_DIR/linux_amd64/buildcop
+	$KOKORO_GFILE_DIR/linux_amd64/buildcop
+	}
+	trap cleanup EXIT HUP
+fi
+
 npm test
 
 exit $?