diff --git a/tools/include/nolibc/arch.h b/tools/include/nolibc/arch.h
index e276fb0680af..2f72ccac0378 100644
--- a/tools/include/nolibc/arch.h
+++ b/tools/include/nolibc/arch.h
@@ -33,6 +33,8 @@
 #include "arch-s390.h"
 #elif defined(__loongarch__)
 #include "arch-loongarch.h"
+#else
+#error Unsupported Architecture
 #endif
 
 #endif /* _NOLIBC_ARCH_H */