diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/String.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/String.kt
index 692256eec..a2e6cbfc8 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/String.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/String.kt
@@ -3,7 +3,10 @@ package com.simplemobiletools.gallery.extensions
 import com.bumptech.glide.signature.ObjectKey
 import java.io.File
 
-fun String.getFileSignature() = ObjectKey(File(this).lastModified().toString())
+fun String.getFileSignature(): ObjectKey {
+    val file = File(this)
+    return ObjectKey("${file.name}${file.lastModified()}")
+}
 
 fun String.isThisOrParentIncluded(includedPaths: MutableSet<String>) = includedPaths.any { startsWith(it, true) }