diff --git a/dosbox_pure_libretro.cpp b/dosbox_pure_libretro.cpp
index b6090a26..78907e5f 100644
--- a/dosbox_pure_libretro.cpp
+++ b/dosbox_pure_libretro.cpp
@@ -2643,7 +2643,7 @@ static bool check_variables(bool is_startup = false)
 			DBP_ASSERT(prop);
 			std::string tmpval;
 			const char* old_val = (prop->Get_type() == Value::V_STRING ? (const char*)prop->GetValue() : (tmpval = prop->GetValue().ToString()).c_str());
-			if (!section || !strcmp(new_value, old_val) || prop->getChange() == Property::Changeable::Fixed) return false;
+			if (!section || !strcmp(new_value, old_val) || prop->IsFixed()) return false;
 
 			bool reInitSection = (dbp_state != DBPSTATE_BOOT);
 			if (disallow_in_game && dbp_game_running)
diff --git a/dosbox_pure_osd.h b/dosbox_pure_osd.h
index 4b8a7d2b..1ecf2f11 100644
--- a/dosbox_pure_osd.h
+++ b/dosbox_pure_osd.h
@@ -1306,8 +1306,7 @@ struct DBP_PureMenuState : DBP_MenuState
 		else if (ok_type == IT_BOOTIMG)
 		{
 			// Machine property was fixed by dbp_reboot_machine or DOSBOX.CONF and cannot be modified here, so automatically boot the image as is (RES_NONE check is for GoToSubMenu)
-			if (control->GetProp("dosbox", "machine")->getChange() == Property::Changeable::Fixed)
-				{ if (res != RES_NONE) goto handle_result; else goto top_menu; }
+			if (control->GetProp("dosbox", "machine")->IsFixed()) { if (res != RES_NONE) goto handle_result; else goto top_menu; }
 			list.clear();
 			list.emplace_back(IT_NONE, INFO_HEADER, "Select Boot System Mode");
 			list.emplace_back(IT_NONE);
diff --git a/dosbox_pure_run.h b/dosbox_pure_run.h
index 690414d5..03272839 100644
--- a/dosbox_pure_run.h
+++ b/dosbox_pure_run.h
@@ -336,7 +336,7 @@ struct DBP_Run
 		}
 
 		Property* bootImgMachine = (mode == RUN_BOOTIMG && info ? control->GetProp("dosbox", "machine") : NULL);
-		if (startup.reboot || dbp_game_running || (bootImgMachine && info != *(const char*)bootImgMachine->GetValue() && bootImgMachine->getChange() != Property::Changeable::Fixed))
+		if (startup.reboot || dbp_game_running || (bootImgMachine && info != *(const char*)bootImgMachine->GetValue() && !bootImgMachine->IsFixed()))
 		{
 			startup.reboot = false;
 			if (mode == RUN_BOOTIMG) dbp_reboot_machine = (info ? (char)info : *(const char*)bootImgMachine->GetValue());
diff --git a/include/setup.h b/include/setup.h
index 8e13c18b..97192ef3 100644
--- a/include/setup.h
+++ b/include/setup.h
@@ -150,7 +150,8 @@ class Property {
 	Value::Etype Get_type(){return default_value.type;}
 	Changeable::Value getChange() {return change;}
 #ifdef C_DBP_LIBRETRO
-	void MarkFixed(){const_cast<Changeable::Value&>(change)=Changeable::Fixed;}
+	inline void MarkFixed(){const_cast<Changeable::Value&>(change)=Changeable::Fixed;}
+	inline bool IsFixed(){return change==Changeable::Fixed;}
 #endif
 
 protected: