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-rw-r--r--src/emu/ui/miscmenu.cpp5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/emu/ui/miscmenu.cpp b/src/emu/ui/miscmenu.cpp
index af11fd54cea..5c6bc57c9b9 100644
--- a/src/emu/ui/miscmenu.cpp
+++ b/src/emu/ui/miscmenu.cpp
@@ -124,9 +124,8 @@ void ui_menu_bios_selection::handle()
assert(error.empty());
} else {
std::string error;
- std::string value;
- std::string temp;
- strprintf(value,"%s,bios=%d",machine().options().main_value(temp,dev->owner()->tag()+1),val-1);
+ std::string value = machine().options().main_value(dev->owner()->tag()+1);
+ strcatprintf(value,",bios=%d",val-1);
machine().options().set_value(dev->owner()->tag()+1, value.c_str(), OPTION_PRIORITY_CMDLINE, error);
assert(error.empty());
}