diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/DialogController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/DialogController.kt
index 847f97214b..63f63e1d00 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/DialogController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/DialogController.kt
@@ -97,7 +97,7 @@ abstract class DialogController : Controller {
     /**
      * Dismiss the dialog and pop this controller
      */
-    private fun dismissDialog() {
+    fun dismissDialog() {
         if (dismissed) {
             return
         }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/AddDuplicateMangaDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/AddDuplicateMangaDialog.kt
new file mode 100644
index 0000000000..5121f44cc0
--- /dev/null
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/AddDuplicateMangaDialog.kt
@@ -0,0 +1,49 @@
+package eu.kanade.tachiyomi.ui.manga
+
+import android.app.Dialog
+import android.os.Bundle
+import com.bluelinelabs.conductor.Controller
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.source.SourceManager
+import eu.kanade.tachiyomi.ui.base.controller.DialogController
+import eu.kanade.tachiyomi.ui.base.controller.pushController
+import uy.kohesive.injekt.injectLazy
+
+class AddDuplicateMangaDialog<T>(bundle: Bundle? = null) : DialogController(bundle)
+    where T : Controller, T : AddDuplicateMangaDialog.Listener {
+
+    private val sourceManager: SourceManager by injectLazy()
+
+    private lateinit var libraryManga: Manga
+    private lateinit var newManga: Manga
+
+    constructor(target: T, libraryManga: Manga, newManga: Manga) : this() {
+        targetController = target
+
+        this.libraryManga = libraryManga
+        this.newManga = newManga
+    }
+
+    override fun onCreateDialog(savedViewState: Bundle?): Dialog {
+        val source = sourceManager.getOrStub(libraryManga.source)
+
+        return MaterialAlertDialogBuilder(activity!!)
+            .setMessage(activity?.getString(R.string.confirm_manga_add_duplicate, source.name))
+            .setPositiveButton(activity?.getString(R.string.action_add)) { _, _ ->
+                (targetController as? Listener)?.addToLibrary(newManga)
+            }
+            .setNegativeButton(android.R.string.cancel, null)
+            .setNeutralButton(activity?.getString(R.string.action_show_manga)) { _, _ ->
+                dismissDialog()
+                router.pushController(MangaController(libraryManga))
+            }
+            .setCancelable(true)
+            .create()
+    }
+
+    interface Listener {
+        fun addToLibrary(newManga: Manga)
+    }
+}
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt
index 60f0929d8f..e36f5a2031 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt
@@ -29,7 +29,6 @@ import coil.request.ImageRequest
 import com.bluelinelabs.conductor.Controller
 import com.bluelinelabs.conductor.ControllerChangeHandler
 import com.bluelinelabs.conductor.ControllerChangeType
-import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
 import com.google.android.material.snackbar.Snackbar
 import dev.chrisbanes.insetter.applyInsetter
@@ -114,6 +113,7 @@ class MangaController :
     FlexibleAdapter.OnItemClickListener,
     FlexibleAdapter.OnItemLongClickListener,
     BaseChaptersAdapter.OnChapterClickListener,
+    AddDuplicateMangaDialog.Listener,
     ChangeMangaCoverDialog.Listener,
     ChangeMangaCategoriesDialog.Listener,
     DownloadCustomChaptersDialog.Listener,
@@ -521,38 +521,18 @@ class MangaController :
         } else {
             val duplicateManga = presenter.getDuplicateLibraryManga(manga)
             if (duplicateManga != null) {
-                showAddDuplicateDialog(
-                    manga,
-                    duplicateManga,
-                )
+                AddDuplicateMangaDialog(this, duplicateManga, manga).showDialog(router)
             } else {
                 addToLibrary(manga)
             }
         }
     }
 
-    private fun showAddDuplicateDialog(newManga: Manga, libraryManga: Manga) {
-        activity?.let {
-            val source = sourceManager.getOrStub(libraryManga.source)
-            MaterialAlertDialogBuilder(it).apply {
-                setMessage(activity?.getString(R.string.confirm_manga_add_duplicate, source.name))
-                setPositiveButton(activity?.getString(R.string.action_add)) { _, _ ->
-                    addToLibrary(newManga)
-                }
-                setNegativeButton(activity?.getString(R.string.action_cancel)) { _, _ -> }
-                setNeutralButton(activity?.getString(R.string.action_show_manga)) { _, _ ->
-                    router.pushController(MangaController(libraryManga))
-                }
-                setCancelable(true)
-            }.create().show()
-        }
-    }
-
     fun onTrackingClick() {
         trackSheet?.show()
     }
 
-    private fun addToLibrary(manga: Manga) {
+    override fun addToLibrary(newManga: Manga) {
         val categories = presenter.getCategories()
         val defaultCategoryId = preferences.defaultCategory()
         val defaultCategory = categories.find { it.id == defaultCategoryId }
@@ -561,7 +541,7 @@ class MangaController :
             // Default category set
             defaultCategory != null -> {
                 toggleFavorite()
-                presenter.moveMangaToCategory(manga, defaultCategory)
+                presenter.moveMangaToCategory(newManga, defaultCategory)
                 activity?.toast(activity?.getString(R.string.manga_added_library))
                 activity?.invalidateOptionsMenu()
             }
@@ -569,14 +549,14 @@ class MangaController :
             // Automatic 'Default' or no categories
             defaultCategoryId == 0 || categories.isEmpty() -> {
                 toggleFavorite()
-                presenter.moveMangaToCategory(manga, null)
+                presenter.moveMangaToCategory(newManga, null)
                 activity?.toast(activity?.getString(R.string.manga_added_library))
                 activity?.invalidateOptionsMenu()
             }
 
             // Choose a category
             else -> {
-                val ids = presenter.getMangaCategoryIds(manga)
+                val ids = presenter.getMangaCategoryIds(newManga)
                 val preselected = categories.map {
                     if (it.id in ids) {
                         QuadStateTextView.State.CHECKED.ordinal
@@ -585,7 +565,7 @@ class MangaController :
                     }
                 }.toTypedArray()
 
-                showChangeCategoryDialog(manga, categories, preselected)
+                showChangeCategoryDialog(newManga, categories, preselected)
             }
         }
 
@@ -597,12 +577,12 @@ class MangaController :
                 .forEach { service ->
                     launchIO {
                         try {
-                            service.match(manga)?.let { track ->
+                            service.match(newManga)?.let { track ->
                                 presenter.registerTracking(track, service as TrackService)
                             }
                         } catch (e: Exception) {
                             logcat(LogPriority.WARN, e) {
-                                "Could not match manga: ${manga.title} with service $service"
+                                "Could not match manga: ${newManga.title} with service $service"
                             }
                         }
                     }