diff --git a/db/migrate/20180508135515_set_runner_type_not_null.rb b/db/migrate/20180508135515_set_runner_type_not_null.rb
new file mode 100644
index 0000000000000000000000000000000000000000..dd043ec7179d349dd36e589f201b0b21a6ace61f
--- /dev/null
+++ b/db/migrate/20180508135515_set_runner_type_not_null.rb
@@ -0,0 +1,9 @@
+class SetRunnerTypeNotNull < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    change_column_null(:ci_runners, :runner_type, false)
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 6fd10785d77aefb273e05cb52f2a5a047bcaae17..839a5f6699ac711efe35277bf272881894de3bdc 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180508055821) do
+ActiveRecord::Schema.define(version: 20180508135515) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -497,7 +497,7 @@ ActiveRecord::Schema.define(version: 20180508055821) do
     t.integer "access_level", default: 0, null: false
     t.string "ip_address"
     t.integer "maximum_timeout"
-    t.integer "runner_type", limit: 2
+    t.integer "runner_type", limit: 2, null: false
   end
 
   add_index "ci_runners", ["contacted_at"], name: "index_ci_runners_on_contacted_at", using: :btree
diff --git a/spec/factories/ci/runners.rb b/spec/factories/ci/runners.rb
index 34b8b246d0fc0bfbb83372073e72934225796254..cdc170b9ccb890884805a318b50a7925c26ae7e3 100644
--- a/spec/factories/ci/runners.rb
+++ b/spec/factories/ci/runners.rb
@@ -6,6 +6,7 @@ FactoryBot.define do
     is_shared false
     active    true
     access_level :not_protected
+    runner_type :project_type
 
     trait :online do
       contacted_at Time.now
@@ -13,6 +14,7 @@ FactoryBot.define do
 
     trait :shared do
       is_shared true
+      runner_type :instance_type
     end
 
     trait :specific do