Nucleus

diff --git a/include/nucleus/panic.h b/include/nucleus/panic.h
index 63034cf..27eea94 100644
--- a/include/nucleus/panic.h
+++ b/include/nucleus/panic.h
@@ -1,6 +1,7 @@
 #ifndef _NUCLEUS_PANIC_H
 #define _NUCLEUS_PANIC_H
 
+int sprintf(char *buf, char *fmt, ...);
 void kprintf(char *fmt, ...);
 _Noreturn void panic(char *fmt, ...);