diff --git a/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp b/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp
index cc2a53ed2..1c0e5cd82 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/operationdialog.cpp
@@ -91,7 +91,10 @@ void COperationDialog::processNextStep()
 	// default profile
 	const CProfile &configuration = config->getProfile();
 
-	switch(config->getNextStep())
+	// long operations are done in a thread
+	CConfigFile::InstallationStep step = config->getNextStep();
+
+	switch(step)
 	{
 		case CConfigFile::DisplayNoServerError:
 		break;