diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt
index bbab74fb1..f18725729 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt
@@ -208,11 +208,11 @@ class DBHelper(context: Context) : SQLiteOpenHelper(context, DB_NAME, null, DB_V
         val builder = SQLiteQueryBuilder()
         builder.tables = "$MAIN_TABLE_NAME LEFT OUTER JOIN $META_TABLE_NAME ON $COL_EVENT_ID = $MAIN_TABLE_NAME.$COL_ID"
         val projection = allColumns
-        return builder.query(mDb, projection, selection, selectionArgs, MAIN_TABLE_NAME + "." + COL_ID, null, COL_START_TS)
+        return builder.query(mDb, projection, selection, selectionArgs, "$MAIN_TABLE_NAME.COL_ID", null, COL_START_TS)
     }
 
     private val allColumns: Array<String>
-        get() = arrayOf(MAIN_TABLE_NAME + "." + COL_ID, COL_START_TS, COL_END_TS, COL_TITLE, COL_DESCRIPTION, COL_REMINDER_MINUTES, COL_REPEAT_INTERVAL, COL_REPEAT_MONTH, COL_REPEAT_DAY)
+        get() = arrayOf("$MAIN_TABLE_NAME.$COL_ID", COL_START_TS, COL_END_TS, COL_TITLE, COL_DESCRIPTION, COL_REMINDER_MINUTES, COL_REPEAT_INTERVAL, COL_REPEAT_MONTH, COL_REPEAT_DAY)
 
     private fun fillEvents(cursor: Cursor?): List<Event> {
         val events = ArrayList<Event>()