diff --git a/src/musredit_qt6/musredit/PTextEdit.cpp b/src/musredit_qt6/musredit/PTextEdit.cpp
index cdd212c8..72ff1787 100644
--- a/src/musredit_qt6/musredit/PTextEdit.cpp
+++ b/src/musredit_qt6/musredit/PTextEdit.cpp
@@ -2565,7 +2565,9 @@ 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");