diff --git a/src/main/kotlin/com/wire/github/util/Extensions.kt b/src/main/kotlin/com/wire/github/util/Extensions.kt
index e48b88b..684daaf 100644
--- a/src/main/kotlin/com/wire/github/util/Extensions.kt
+++ b/src/main/kotlin/com/wire/github/util/Extensions.kt
@@ -2,6 +2,8 @@ package com.wire.github.util
 
 import com.wire.sdk.model.QualifiedId
 
-fun QualifiedId.toStorageKey() = "${this.id}@${this.domain}"
+private const val STORAGE_KEY_PREFIX = "github-app:"
 
-fun String.toStorageKey(domain: String) = "$this@$domain"
+fun QualifiedId.toStorageKey() = "$STORAGE_KEY_PREFIX${this.id}@${this.domain}"
+
+fun String.toStorageKey(domain: String) = "$STORAGE_KEY_PREFIX$this@$domain"