diff --git a/luna/include/luna/Check.h b/luna/include/luna/Check.h
index 37c3b13f..faf75bd7 100644
--- a/luna/include/luna/Check.h
+++ b/luna/include/luna/Check.h
@@ -1,5 +1,4 @@
 #pragma once
-#include <luna/Attributes.h>
 
 [[noreturn]] extern bool __check_failed(const char* file, const char* line, const char* func, const char* expr);
 
@@ -23,3 +22,6 @@
             __check_failed(__FILE__, STRINGIZE_VALUE_OF(__LINE__), __PRETTY_FUNCTION__, #expr);                        \
         }                                                                                                              \
     } while (0)
+
+#define unreachable()                                                                                                  \
+    __check_failed(__FILE__, STRINGIZE_VALUE_OF(__LINE__), __PRETTY_FUNCTION__, "Reached unreachable code")