diff --git a/.travis.yml b/.travis.yml
index bd55b4ef0..b20e44e55 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ matrix:
           PGSSLROOTCERT=$TRAVIS_BUILD_DIR/packages/pg/test/tls/test-server-ca.crt
           PGSSLCERT=$TRAVIS_BUILD_DIR/packages/pg/test/tls/test-client.crt
           PGSSLKEY=$TRAVIS_BUILD_DIR/packages/pg/test/tls/test-client.key
+          PG_CLIENT_CERT_TEST=1
       before_script:
         - |
           cat <<'travis ci breaks heredoc' | sudo tee -a /etc/postgresql/10/main/postgresql.conf
@@ -26,6 +27,6 @@ matrix:
         - sudo make -C packages/pg/test/tls install DESTDIR=/etc/postgresql/10/main
         - sudo systemctl restart postgresql
         - yarn build
-        - node packages/pg/script/create-test-tables.js postgresql:///
       script: |
-        yarn lerna exec --scope pg yarn test
+        node packages/pg/test/integration/connection-pool/test-tls.js
+        node packages/pg/test/integration/connection-pool/test-tls.js native
diff --git a/packages/pg/script/create-test-tables.js b/packages/pg/script/create-test-tables.js
index 495a5d1bb..93d0d4231 100644
--- a/packages/pg/script/create-test-tables.js
+++ b/packages/pg/script/create-test-tables.js
@@ -56,8 +56,6 @@ if (process.env.PGSSLMODE) {
   }
 }
 
-console.log('%O', config.ssl)
-
 var con = new pg.Client(config)
 
 con.connect((err) => {
diff --git a/packages/pg/test/integration/connection-pool/tls-tests.js b/packages/pg/test/integration/connection-pool/tls-tests.js
new file mode 100644
index 000000000..f85941d45
--- /dev/null
+++ b/packages/pg/test/integration/connection-pool/tls-tests.js
@@ -0,0 +1,23 @@
+'use strict'
+
+const fs = require('fs')
+
+const helper = require('./test-helper')
+const pg = helper.pg
+
+const suite = new helper.Suite()
+
+if (process.env.PG_CLIENT_CERT_TEST) {
+  suite.testAsync('client certificate', async () => {
+    const pool = new pg.Pool({
+      ssl: {
+        ca: fs.readFileSync(process.env.PGSSLROOTCERT),
+        cert: fs.readFileSync(process.env.PGSSLCERT),
+        key: fs.readFileSync(process.env.PGSSLKEY),
+      },
+    })
+
+    await pool.query('SELECT 1')
+    await pool.end()
+  })
+}