diff --git a/src/file/extractorprocess.h b/src/file/extractorprocess.h
--- a/src/file/extractorprocess.h
+++ b/src/file/extractorprocess.h
@@ -50,8 +50,6 @@
     QProcess m_extractorProcess;
     QTimer m_timeCurrentFile;
     int m_processTimeout;
-
-    bool m_extractorIdle;
 };
 }
 
diff --git a/src/file/extractorprocess.cpp b/src/file/extractorprocess.cpp
--- a/src/file/extractorprocess.cpp
+++ b/src/file/extractorprocess.cpp
@@ -45,7 +45,6 @@
 void ExtractorProcess::index(const QVector<quint64>& fileIds)
 {
     Q_ASSERT(m_extractorProcess.state() == QProcess::Running);
-    Q_ASSERT(m_extractorIdle);
     Q_ASSERT(!fileIds.isEmpty());
 
     QByteArray batchData;
@@ -56,7 +55,6 @@
         batchData.append(reinterpret_cast<char*>(&id), sizeof(quint64));
     }
 
-    m_extractorIdle = false;
     m_extractorProcess.write(batchData.data(), batchData.size());
 }
 
@@ -82,7 +80,6 @@
 
         case 'B':
             Q_EMIT done();
-            m_extractorIdle = true;
             break;
 
         default: