diff --git a/app/src/main/kotlin/jackall/overlaymulticounter/contract/CounterContract.kt b/app/src/main/kotlin/jackall/overlaymulticounter/contract/CounterContract.kt
index a70ccde..4955313 100644
--- a/app/src/main/kotlin/jackall/overlaymulticounter/contract/CounterContract.kt
+++ b/app/src/main/kotlin/jackall/overlaymulticounter/contract/CounterContract.kt
@@ -7,4 +7,5 @@
     fun plus(id: Int)
     fun minus(id: Int)
     fun reset(id: Int)
+    fun editTitle(id: Int, title: String)
 }
\ No newline at end of file