diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index de9ac1aa25e8..8bc2c819f10a 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -27,6 +27,7 @@ static inline unsigned long kimage_addr_to_ra(const char *p)
 
 #ifdef CONFIG_SPARC32
 /* setup_32.c */
+struct linux_romvec;
 void sparc32_start_kernel(struct linux_romvec *rp);
 
 /* cpu.c */