diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index b2988c0ed82961c043b682d44b829c6db00a1e46..3327ffb3892671b46f717215b1564b7b2e3a68d5 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -44,7 +44,6 @@ struct trampoline_header {
 extern struct real_mode_header *real_mode_header;
 extern unsigned char real_mode_blob_end[];
 
-extern unsigned long init_rsp;
 extern unsigned long initial_code;
 extern unsigned long initial_gs;