diff --git a/src/libs/clangsupport/connectionclient.cpp b/src/libs/clangsupport/connectionclient.cpp
index 92028bc7bec..487b754fdb4 100644
--- a/src/libs/clangsupport/connectionclient.cpp
+++ b/src/libs/clangsupport/connectionclient.cpp
@@ -69,6 +69,12 @@ void ConnectionClient::startProcessAndConnectToServerAsynchronously()
     m_processFuture = m_processCreator.createProcess();
 }
 
+void ConnectionClient::disconnectFromServer()
+{
+    if (m_localSocket)
+        m_localSocket->disconnectFromServer();
+}
+
 bool ConnectionClient::isConnected() const
 {
     return m_localSocket && m_localSocket->state() == QLocalSocket::ConnectedState;
@@ -164,6 +170,7 @@ void ConnectionClient::restartProcessIfTimerIsNotResettedAndSocketIsEmpty()
     if (!m_localSocket || m_localSocket->bytesAvailable() > 0)
         return; // We come first, the incoming data was not yet processed.
 
+    disconnectFromServer();
     restartProcessAsynchronously();
 }
 
diff --git a/src/libs/clangsupport/connectionclient.h b/src/libs/clangsupport/connectionclient.h
index 6cd79956f5f..327275e0502 100644
--- a/src/libs/clangsupport/connectionclient.h
+++ b/src/libs/clangsupport/connectionclient.h
@@ -58,6 +58,7 @@ public:
     virtual ~ConnectionClient();
 
     void startProcessAndConnectToServerAsynchronously();
+    void disconnectFromServer();
     bool isConnected() const;
 
     void sendEndMessage();