diff --git a/src/plugins/vcsbase/vcsbaseoutputwindow.cpp b/src/plugins/vcsbase/vcsbaseoutputwindow.cpp
index 96ced2c7ff0..24d0835b209 100644
--- a/src/plugins/vcsbase/vcsbaseoutputwindow.cpp
+++ b/src/plugins/vcsbase/vcsbaseoutputwindow.cpp
@@ -113,6 +113,7 @@ OutputWindowPlainTextEdit::OutputWindowPlainTextEdit(QWidget *parent) :
     m_commandFormat(m_defaultFormat)
 {
     setReadOnly(true);
+    setUndoRedoEnabled(false);
     setFrameStyle(QFrame::NoFrame);
     m_errorFormat.setForeground(Qt::red);
     m_warningFormat.setForeground(Qt::darkYellow);