diff --git a/packages/angular/cli/lib/config/workspace-schema.json b/packages/angular/cli/lib/config/workspace-schema.json
index 650ae3ae18..dce8ecfec6 100644
--- a/packages/angular/cli/lib/config/workspace-schema.json
+++ b/packages/angular/cli/lib/config/workspace-schema.json
@@ -368,7 +368,6 @@
                       "@angular-devkit/build-angular:prerender",
                       "@angular-devkit/build-angular:jest",
                       "@angular-devkit/build-angular:web-test-runner",
-                      "@angular-devkit/build-angular:protractor",
                       "@angular-devkit/build-angular:server",
                       "@angular-devkit/build-angular:ssr-dev-server"
                     ]
@@ -656,28 +655,6 @@
                 }
               }
             },
-            {
-              "type": "object",
-              "additionalProperties": false,
-              "properties": {
-                "builder": {
-                  "const": "@angular-devkit/build-angular:protractor"
-                },
-                "defaultConfiguration": {
-                  "type": "string",
-                  "description": "A default named configuration to use when a target configuration is not provided."
-                },
-                "options": {
-                  "$ref": "../../../../angular_devkit/build_angular/src/builders/protractor/schema.json"
-                },
-                "configurations": {
-                  "type": "object",
-                  "additionalProperties": {
-                    "$ref": "../../../../angular_devkit/build_angular/src/builders/protractor/schema.json"
-                  }
-                }
-              }
-            },
             {
               "type": "object",
               "additionalProperties": false,
diff --git a/packages/angular_devkit/build_angular/builders.json b/packages/angular_devkit/build_angular/builders.json
index 5f76fa25d4..9141cdf94f 100644
--- a/packages/angular_devkit/build_angular/builders.json
+++ b/packages/angular_devkit/build_angular/builders.json
@@ -42,10 +42,10 @@
       "schema": "./src/builders/web-test-runner/schema.json",
       "description": "Run unit tests with Web Test Runner."
     },
-    "protractor": {
+    "private-protractor": {
       "implementation": "./src/builders/protractor",
       "schema": "./src/builders/protractor/schema.json",
-      "description": "Run protractor over a dev server."
+      "description": "PRIVATE API - Do not use."
     },
     "server": {
       "implementation": "./src/builders/server",
diff --git a/packages/schematics/angular/collection.json b/packages/schematics/angular/collection.json
index f4def2da5a..5f69181954 100755
--- a/packages/schematics/angular/collection.json
+++ b/packages/schematics/angular/collection.json
@@ -23,10 +23,10 @@
       "schema": "./application/schema.json",
       "description": "Create an Angular application."
     },
-    "e2e": {
+    "private-e2e": {
       "factory": "./e2e",
       "schema": "./e2e/schema.json",
-      "description": "Create an Angular e2e application.",
+      "description": "PRIVATE API - Do not use.",
       "hidden": true
     },
     "class": {
diff --git a/packages/schematics/angular/utility/workspace-models.ts b/packages/schematics/angular/utility/workspace-models.ts
index 49330e29e2..41c41345f7 100644
--- a/packages/schematics/angular/utility/workspace-models.ts
+++ b/packages/schematics/angular/utility/workspace-models.ts
@@ -30,7 +30,7 @@ export enum Builders {
   NgPackagr = '@angular-devkit/build-angular:ng-packagr',
   DevServer = '@angular-devkit/build-angular:dev-server',
   ExtractI18n = '@angular-devkit/build-angular:extract-i18n',
-  Protractor = '@angular-devkit/build-angular:protractor',
+  Protractor = '@angular-devkit/build-angular:private-protractor',
   BuildApplication = '@angular/build:application',
 }