diff --git a/src/all/mangadex/build.gradle b/src/all/mangadex/build.gradle
index 9e90e1835..721bb2ebb 100644
--- a/src/all/mangadex/build.gradle
+++ b/src/all/mangadex/build.gradle
@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: MangaDex'
     pkgNameSuffix = 'all.mangadex'
     extClass = '.MangadexFactory'
-    extVersionCode = 52
+    extVersionCode = 53
     libVersion = '1.2'
 }
 
diff --git a/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/Mangadex.kt b/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/Mangadex.kt
index 9b2a25efb..ded35ca49 100644
--- a/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/Mangadex.kt
+++ b/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/Mangadex.kt
@@ -86,15 +86,21 @@ open class Mangadex(override val lang: String, private val internalLang: String,
             manga.setUrlWithoutDomain(url)
             manga.title = it.text().trim()
         }
-        if (getShowThumbnail() == LOW_QUALITY) {
-            manga.thumbnail_url = formThumbUrl(manga.url)
-        }
+        manga.thumbnail_url = formThumbUrl(manga.url)
         return manga
     }
 
     private fun modifyMangaUrl(url: String): String = url.replace("/title/", "/manga/").substringBeforeLast("/") + "/"
 
-    private fun formThumbUrl(mangaUrl: String): String = cdnUrl + "/images/manga/" + getMangaId(mangaUrl) +".thumb.jpg"
+    private fun formThumbUrl(mangaUrl: String): String {
+        var ext = ".jpg"
+
+        if (getShowThumbnail() == LOW_QUALITY) {
+            ext = ".thumb$ext"
+        }
+
+        return cdnUrl + "/images/manga/" + getMangaId(mangaUrl) + ext
+    }
 
     override fun latestUpdatesFromElement(element: Element): SManga {
         val manga = SManga.create()
@@ -103,9 +109,7 @@ open class Mangadex(override val lang: String, private val internalLang: String,
             manga.title = it.text().trim()
 
         }
-        if (getShowThumbnail() == LOW_QUALITY) {
-            manga.thumbnail_url = formThumbUrl(manga.url)
-        }
+        manga.thumbnail_url = formThumbUrl(manga.url)
 
         return manga
     }
@@ -272,9 +276,7 @@ open class Mangadex(override val lang: String, private val internalLang: String,
             manga.title = it.text().trim()
         }
 
-        if (getShowThumbnail() == LOW_QUALITY) {
-            manga.thumbnail_url = formThumbUrl(manga.url)
-        }
+        manga.thumbnail_url = formThumbUrl(manga.url)
 
         return manga
     }
@@ -493,8 +495,6 @@ open class Mangadex(override val lang: String, private val internalLang: String,
         }
         val thumbsPref = ListPreference(screen.context).apply {
             key = SHOW_THUMBNAIL_PREF_Title
-            title = SHOW_THUMBNAIL_PREF_Title
-
             title = SHOW_THUMBNAIL_PREF_Title
             entries = arrayOf("Show high quality", "Show low quality")
             entryValues = arrayOf("0", "1")
@@ -652,7 +652,6 @@ open class Mangadex(override val lang: String, private val internalLang: String,
         private const val SHOW_R18_PREF_Title = "Default R18 Setting"
         private const val SHOW_R18_PREF = "showR18Default"
 
-        private const val HIGH_QUALITY = 0
         private const val LOW_QUALITY = 1
 
         private const val SHOW_THUMBNAIL_PREF_Title = "Default thumbnail quality"