diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt
index f2c536c7f..8c005b9a4 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt
@@ -260,10 +260,11 @@ class EventActivity : SimpleActivity(), DBHelper.EventUpdateListener {
 
     private fun deleteEvent() {
         DeleteEventDialog(this, arrayListOf(mEvent.id)) {
+            val db = DBHelper.newInstance(applicationContext, null)
             if (it) {
-                DBHelper.newInstance(applicationContext, this).deleteEvents(arrayOf(mEvent.id.toString()))
+                db.deleteEvents(arrayOf(mEvent.id.toString()))
             } else {
-
+                db.deleteEventOccurrence(mEvent.id, mEventOccurrenceTS)
             }
             finish()
         }
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 c54ddd59c..b4c3e6428 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt
@@ -181,6 +181,7 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
             put(COL_IMPORT_ID, event.importId)
             put(COL_FLAGS, event.flags)
             put(COL_EVENT_TYPE, event.eventType)
+            put(COL_PARENT_EVENT_ID, 0)
         }
     }
 
@@ -229,6 +230,13 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
         }
     }
 
+    private fun fillExceptionValues(parentEventId: Int, occurrenceTS: Int): ContentValues {
+        return ContentValues().apply {
+            put(COL_PARENT_EVENT_ID, parentEventId)
+            put(COL_OCCURRENCE_TIMESTAMP, occurrenceTS)
+        }
+    }
+
     fun getEventTypeIdWithTitle(title: String): Int {
         val cols = arrayOf(COL_TYPE_ID)
         val selection = "$COL_TYPE_TITLE = ? COLLATE NOCASE"
@@ -278,6 +286,14 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
         mEventsListener?.eventsDeleted(ids.size)
     }
 
+    fun deleteEventOccurrence(parentEventId: Int, occurrenceTS: Int) {
+        val exceptionSelection = "$COL_PARENT_EVENT_ID = $parentEventId AND $COL_OCCURRENCE_TIMESTAMP = $occurrenceTS"
+        mDb.delete(EXCEPTIONS_TABLE_NAME, exceptionSelection, null)
+
+        val values = fillExceptionValues(parentEventId, occurrenceTS)
+        mDb.insert(EXCEPTIONS_TABLE_NAME, null, values)
+    }
+
     fun deleteEventTypes(ids: ArrayList<Int>, callback: (deletedCnt: Int) -> Unit) {
         var deleteIds = ids
         if (ids.contains(DBHelper.REGULAR_EVENT_TYPE_ID))