diff --git a/src/LyX.cpp b/src/LyX.cpp
index 794df0da68..5ad80dc795 100644
--- a/src/LyX.cpp
+++ b/src/LyX.cpp
@@ -410,6 +410,10 @@ int LyX::exec(int & argc, char * argv[])
 	// Let the frontend parse and remove all arguments that it knows
 	pimpl_->application_.reset(createApplication(argc, argv));
 
+	// Reestablish our defaults, as Qt overwrites them
+	// after createApplication()
+	locale_init();
+
 	// Parse and remove all known arguments in the LyX singleton
 	// Give an error for all remaining ones.
 	int exit_status = init(argc, argv);