diff --git a/app/task/conform/conform.cpp b/app/task/conform/conform.cpp
index 6be547d10..2350f5f19 100644
--- a/app/task/conform/conform.cpp
+++ b/app/task/conform/conform.cpp
@@ -42,9 +42,7 @@ void ConformTask::Action()
 
     connect(decoder.get(), &Decoder::IndexProgress, this, &ConformTask::ProgressChanged);
 
-    decoder->Open();
     decoder->Conform(params_, &IsCancelled());
-    decoder->Close();
 
     emit Succeeded();
   }
diff --git a/app/task/index/index.cpp b/app/task/index/index.cpp
index 248901a73..0fb6393b7 100644
--- a/app/task/index/index.cpp
+++ b/app/task/index/index.cpp
@@ -42,9 +42,7 @@ void IndexTask::Action()
 
     connect(decoder.get(), &Decoder::IndexProgress, this, &IndexTask::ProgressChanged);
 
-    decoder->Open();
     decoder->Index(&IsCancelled());
-    decoder->Close();
 
     emit Succeeded();
   }