diff --git a/backend/internal/ktmtrainbot/backgroundbookingjob.go b/backend/internal/ktmtrainbot/backgroundbookingjob.go
index 1faac2f..cad0890 100644
--- a/backend/internal/ktmtrainbot/backgroundbookingjob.go
+++ b/backend/internal/ktmtrainbot/backgroundbookingjob.go
@@ -54,11 +54,19 @@ func (env *Env) BackgroundJobRunner() {
 		}
 
 		var jobToDo Booking
-		err := tx.Model(&jobToDo).
-			Where("user_id NOT IN (?)", userIDArr).
-			Where("status = ?", "pending").
-			Preload("User").
-			First(&jobToDo).Error
+		var err error
+		if len(userIDArr) > 0 {
+			err = tx.Model(&jobToDo).
+				Where("user_id NOT IN (?)", userIDArr).
+				Where("status = ?", "pending").
+				Preload("User").
+				First(&jobToDo).Error
+		} else {
+			err = tx.Model(&jobToDo).
+				Where("status = ?", "pending").
+				Preload("User").
+				First(&jobToDo).Error
+		}
 
 		// if no jobs pending found
 		if err != nil {