diff --git a/circle.yml b/circle.yml
index 80fe9f10a6b841f1157fe4fb7fc7b7542cc54540..0f12325fc9d25513021ccf4031e75a67f0bec995 100644
--- a/circle.yml
+++ b/circle.yml
@@ -17,12 +17,12 @@ database:
 test:
   override:
     # 0) runs unit tests w/ H2 local DB. Runs against Mongo, H2, Postgres
-    # 1) runs unit tests w/ Postgres local DB. Runs against H2, MySQL
+    # 1) runs unit tests w/ Postgres local DB. Runs against H2, MySQL, SQL Server
     # 2) runs Eastwood linter
     # 3) Bikeshed linter
     # 4) runs JS linter + JS test
     # 5) runs lein uberjar. (We don't run bin/build because we're not really concerned about `npm install` (etc) in this test, which runs elsewhere)
-    - case $CIRCLE_NODE_INDEX in 0) MB_TEST_DATASETS=h2,mongo,postgres lein test ;; 1) MB_TEST_DATASETS=h2,mysql MB_DB_TYPE=postgres MB_DB_DBNAME=circle_test MB_DB_PORT=5432 MB_DB_USER=ubuntu MB_DB_HOST=localhost lein test ;; 2) lein eastwood ;; 3) lein bikeshed --max-line-length 240 ;; 4) npm install && npm run lint && npm run build && npm run test ;; 5) lein uberjar ;; esac:
+    - case $CIRCLE_NODE_INDEX in 0) MB_TEST_DATASETS=h2,mongo,postgres lein test ;; 1) MB_TEST_DATASETS=h2,mysql,sqlserver MB_DB_TYPE=postgres MB_DB_DBNAME=circle_test MB_DB_PORT=5432 MB_DB_USER=ubuntu MB_DB_HOST=localhost lein test ;; 2) lein eastwood ;; 3) lein bikeshed --max-line-length 240 ;; 4) npm install && npm run lint && npm run build && npm run test ;; 5) lein uberjar ;; esac:
         parallel: true
 deployment:
   master: