diff --git a/src/all/tappytoon/build.gradle b/src/all/tappytoon/build.gradle
index 688dab8f6..eb09fb8a5 100644
--- a/src/all/tappytoon/build.gradle
+++ b/src/all/tappytoon/build.gradle
@@ -6,7 +6,7 @@ ext {
     extName = 'Tappytoon'
     pkgNameSuffix = 'all.tappytoon'
     extClass = '.TappytoonFactory'
-    extVersionCode = 4
+    extVersionCode = 5
     isNsfw = true
 }
 
diff --git a/src/all/tappytoon/src/eu/kanade/tachiyomi/extension/all/tappytoon/Tappytoon.kt b/src/all/tappytoon/src/eu/kanade/tachiyomi/extension/all/tappytoon/Tappytoon.kt
index f5d359c21..f25e7df8a 100644
--- a/src/all/tappytoon/src/eu/kanade/tachiyomi/extension/all/tappytoon/Tappytoon.kt
+++ b/src/all/tappytoon/src/eu/kanade/tachiyomi/extension/all/tappytoon/Tappytoon.kt
@@ -30,9 +30,16 @@ class Tappytoon(override val lang: String) : HttpSource() {
 
     override val client = network.client.newBuilder().addInterceptor { chain ->
         val res = chain.proceed(chain.request())
-        if (res.isSuccessful) return@addInterceptor res
+        val mime = res.headers["Content-Type"]
+        if (res.isSuccessful) {
+            if (mime != "application/octet-stream")
+                return@addInterceptor res
+            // Fix Content-Type header
+            return@addInterceptor res.newBuilder()
+                .header("Content-Type", "image/jpeg").build()
+        }
         // Throw JSON error if available
-        if (res.headers["Content-Type"] == "application/json") {
+        if (mime == "application/json") {
             res.body?.string()?.let(json::parseToJsonElement)?.run {
                 throw Error(jsonObject["message"]!!.jsonPrimitive.content)
             }