diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/models/Medium.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/models/Medium.kt
index 50b9bb87c..4bdc2e33c 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/models/Medium.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/models/Medium.kt
@@ -88,5 +88,5 @@ data class Medium(
         return calendar.timeInMillis.toString()
     }
 
-    fun getSignature() = ObjectKey("$path-$modified")
+    fun getSignature() = ObjectKey("$path-$modified-$size")
 }