--- a/src/stats.c
+++ b/src/stats.c
@@ -84,7 +84,7 @@ gchar buffer[BUFFER_SIZE];
 
     info_dialog = gtk_message_dialog_new (GTK_WINDOW(appGUI->sts->stat_window),
                                           GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL,
-                                          GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO, buffer);
+                                          GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO, "%s", buffer);
 
     gtk_window_set_title(GTK_WINDOW(info_dialog), _("Question"));
     gtk_widget_show (info_dialog);
--- a/src/test.c
+++ b/src/test.c
@@ -538,7 +538,7 @@ test_info(GUI *appGUI) {
 
     info_dialog = gtk_message_dialog_new_with_markup (GTK_WINDOW(appGUI->main_window),
                                                       GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL,
-                                                      GTK_MESSAGE_INFO, GTK_BUTTONS_CLOSE, message);
+                                                      GTK_MESSAGE_INFO, GTK_BUTTONS_CLOSE, "%s", message);
 
     gtk_window_set_title (GTK_WINDOW(info_dialog), _("Information"));
     gtk_widget_show (info_dialog);