diff --git a/qad/widgets/session_manager.cpp b/qad/widgets/session_manager.cpp
index b064475..33d16cf 100644
--- a/qad/widgets/session_manager.cpp
+++ b/qad/widgets/session_manager.cpp
@@ -59,7 +59,7 @@ void SessionManager::save() {
 	for (int i = 0; i < spinsliders.size(); ++i)
 		sr.setValue(spinsliders[i].first, spinsliders[i].second->value(), false);
 	for (int i = 0; i < evals.size(); ++i)
-		sr.setValue(evals[i].first, evals[i].second->expression(), false);
+		sr.setValue(evals[i].first, evals[i].second->expression(), "s", false);
 	for (int i = 0; i < tabs.size(); ++i)
 		sr.setValue(tabs[i].first, tabs[i].second->currentIndex(), false);
 	for (int i = 0; i < buttons.size(); ++i)