diff --git a/cms/envs/bok_choy.env.json b/cms/envs/bok_choy.env.json
index 4536fb9df5..7580de1f47 100644
--- a/cms/envs/bok_choy.env.json
+++ b/cms/envs/bok_choy.env.json
@@ -48,7 +48,7 @@
     "CELERY_BROKER_HOSTNAME": "localhost",
     "CELERY_BROKER_TRANSPORT": "amqp",
     "CERT_QUEUE": "certificates",
-    "CMS_BASE": "",
+    "CMS_BASE": "localhost:8031",
     "CODE_JAIL": {
         "limits": {
             "REALTIME": 3,
@@ -67,7 +67,7 @@
         "ENABLE_DISCUSSION_SERVICE": true,
         "ENABLE_INSTRUCTOR_ANALYTICS": true,
         "ENABLE_S3_GRADE_DOWNLOADS": true,
-        "PREVIEW_LMS_BASE": "",
+        "PREVIEW_LMS_BASE": "localhost:8003",
         "SUBDOMAIN_BRANDING": false,
         "SUBDOMAIN_COURSE_LISTINGS": false,
         "ALLOW_ALL_ADVANCED_COMPONENTS": true
@@ -79,7 +79,7 @@
         "ROOT_PATH": "/tmp/edx-s3/grades",
         "STORAGE_TYPE": "localfs"
     },
-    "LMS_BASE": "",
+    "LMS_BASE": "localhost:8003",
     "LOCAL_LOGLEVEL": "INFO",
     "LOGGING_ENV": "sandbox",
     "LOG_DIR": "** OVERRIDDEN **",
diff --git a/lms/envs/bok_choy.env.json b/lms/envs/bok_choy.env.json
index 0902499563..84b7649368 100644
--- a/lms/envs/bok_choy.env.json
+++ b/lms/envs/bok_choy.env.json
@@ -48,7 +48,7 @@
     "CELERY_BROKER_HOSTNAME": "localhost",
     "CELERY_BROKER_TRANSPORT": "amqp",
     "CERT_QUEUE": "certificates",
-    "CMS_BASE": "",
+    "CMS_BASE": "localhost:8031",
     "CODE_JAIL": {
         "limits": {
             "REALTIME": 3,
@@ -67,7 +67,7 @@
         "ENABLE_DISCUSSION_SERVICE": true,
         "ENABLE_INSTRUCTOR_ANALYTICS": true,
         "ENABLE_S3_GRADE_DOWNLOADS": true,
-        "PREVIEW_LMS_BASE": "",
+        "PREVIEW_LMS_BASE": "localhost:8003",
         "SUBDOMAIN_BRANDING": false,
         "SUBDOMAIN_COURSE_LISTINGS": false
     },
@@ -78,7 +78,7 @@
         "ROOT_PATH": "/tmp/edx-s3/grades",
         "STORAGE_TYPE": "localfs"
     },
-    "LMS_BASE": "",
+    "LMS_BASE": "localhost:8003",
     "LOCAL_LOGLEVEL": "INFO",
     "LOGGING_ENV": "sandbox",
     "LOG_DIR": "** OVERRIDDEN **",