diff --git a/src/musredit_qt5/musredit/PTextEdit.cpp b/src/musredit_qt5/musredit/PTextEdit.cpp
index e7732590..77f4aa62 100644
--- a/src/musredit_qt5/musredit/PTextEdit.cpp
+++ b/src/musredit_qt5/musredit/PTextEdit.cpp
@@ -2569,7 +2569,9 @@ void PTextEdit::musrView()
 #endif
   proc.setProgram(cmd);
   proc.setProcessEnvironment(env);
-  if (!proc.startDetached(cmd, arg, workDir)) {
+  proc.setArguments(arg);
+  proc.setWorkingDirectory(workDir);
+  if (!proc.startDetached()) {
     QString msg = QString("musrview failed. Possible reasons:\n");
     msg += QString("* corrupted msr-file.\n");
     msg += QString("* cannot read data-file.\n");