diff -p -up alsamixergui-0.9.0rc1-2/src/Fl_AM.cxx.strfmt alsamixergui-0.9.0rc1-2/src/Fl_AM.cxx
--- alsamixergui-0.9.0rc1-2/src/Fl_AM.cxx.strfmt	2010-01-18 17:36:18.000000000 +0100
+++ alsamixergui-0.9.0rc1-2/src/Fl_AM.cxx	2010-01-18 17:53:41.000000000 +0100
@@ -151,7 +151,7 @@ void gui_show_text(char* text)
 void gui_abort(const char* errorstr)
 {
 	if (strcmp(errorstr,""))
-		fl_alert(errorstr);
+		fl_alert("%s", errorstr);
 }
 
 void gui_mixer_change_view(void)