diff --git a/source/mijin/util/os.hpp b/source/mijin/util/os.hpp
index e99db35..9104b0f 100644
--- a/source/mijin/util/os.hpp
+++ b/source/mijin/util/os.hpp
@@ -4,8 +4,10 @@
 #if !defined(MIJIN_UTIL_OS_HPP_INCLUDED)
 #define MIJIN_UTIL_OS_HPP_INCLUDED 1
 
+#include <csignal>
 #include <string>
 #include <string_view>
+#include "../detect.hpp"
 
 namespace mijin
 {
@@ -42,4 +44,16 @@ void setCurrentThreadName(const char* threadName) noexcept;
 
 } // namespace mijin
 
+#if MIJIN_TARGET_OS == MIJIN_OS_LINUX || MIJIN_TARGET_OS == MIJIN_OS_OSX
+#if !defined(SIGTRAP)
+static constexpr int SIGTRAP = 5;
+#endif
+#define _debugBreak() (void) std::raise(SIGTRAP)
+#elif MIJIN_TARGET_OS == MIJIN_OS_WINDOWS
+extern "C" __declspec(dllimport) void __stdcall DebugBreak();
+#define _debugBreak() DebugBreak()
+#else
+#define _debugBreak() ((void)0)
+#endif
+
 #endif // !defined(MIJIN_UTIL_OS_HPP_INCLUDED)