diff --git a/db/bolt/runner.go b/db/bolt/runner.go
index d93801d2..4d5416e7 100644
--- a/db/bolt/runner.go
+++ b/db/bolt/runner.go
@@ -7,13 +7,16 @@ import (
 )
 
 func (d *BoltDb) GetRunner(projectID int, runnerID int) (runner db.Runner, err error) {
+	err = db.ErrNotFound
 	return
 }
 
 func (d *BoltDb) GetRunners(projectID int, activeOnly bool) (runners []db.Runner, err error) {
+	runners = make([]db.Runner, 0)
 	return
 }
 
 func (d *BoltDb) DeleteRunner(projectID int, runnerID int) (err error) {
+	err = db.ErrNotFound
 	return
 }
diff --git a/db/sql/runner.go b/db/sql/runner.go
index 0643058b..f3ed4028 100644
--- a/db/sql/runner.go
+++ b/db/sql/runner.go
@@ -7,6 +7,7 @@ import (
 )
 
 func (d *SqlDb) GetRunner(projectID int, runnerID int) (runner db.Runner, err error) {
+	err = db.ErrNotFound
 	return
 }
 
@@ -16,5 +17,6 @@ func (d *SqlDb) GetRunners(projectID int, activeOnly bool) (runners []db.Runner,
 }
 
 func (d *SqlDb) DeleteRunner(projectID int, runnerID int) (err error) {
+	err = db.ErrNotFound
 	return
 }