diff --git a/library/src/main/java/eu/kanade/tachiyomi/source/model/SManga.kt b/library/src/main/java/eu/kanade/tachiyomi/source/model/SManga.kt
index 996a5b9..3ecb11e 100644
--- a/library/src/main/java/eu/kanade/tachiyomi/source/model/SManga.kt
+++ b/library/src/main/java/eu/kanade/tachiyomi/source/model/SManga.kt
@@ -18,6 +18,8 @@ interface SManga {
 
     var thumbnail_url: String?
 
+    var update_strategy: UpdateStrategy
+
     var initialized: Boolean
 
     companion object {
diff --git a/library/src/main/java/eu/kanade/tachiyomi/source/model/UpdateStrategy.kt b/library/src/main/java/eu/kanade/tachiyomi/source/model/UpdateStrategy.kt
new file mode 100644
index 0000000..aa1d701
--- /dev/null
+++ b/library/src/main/java/eu/kanade/tachiyomi/source/model/UpdateStrategy.kt
@@ -0,0 +1,6 @@
+package eu.kanade.tachiyomi.source.model
+
+enum class UpdateStrategy {
+    ALWAYS_UPDATE,
+    ONLY_FETCH_ONCE
+}