Index: pcsx2-qt/QtHost.cpp
--- pcsx2-qt/QtHost.cpp.orig
+++ pcsx2-qt/QtHost.cpp
@@ -2019,10 +2019,12 @@ static void SignalHandler(int signal)
 	std::signal(signal, SIG_DFL);
 
 	// MacOS is missing std::quick_exit() despite it being C++11...
-#ifndef __APPLE__
-	std::quick_exit(1);
-#else
+#if defined(__APPLE__)
 	_Exit(1);
+#elif defined(__OpenBSD__)
+	_Exit(1);
+#else
+	std::quick_exit(1);
 #endif
 }
 
