diff --git a/include/asm-sh/user.h b/include/asm-sh/user.h
index 1a4f43c..8fd3cf6 100644
--- a/include/asm-sh/user.h
+++ b/include/asm-sh/user.h
@@ -52,7 +52,7 @@
 	unsigned long	start_data;		/* data starting address */
 	unsigned long	start_stack;		/* stack starting address */
 	long int	signal;			/* signal causing core dump */
-	struct regs *	u_ar0;			/* help gdb find registers */
+	unsigned long	u_ar0;			/* help gdb find registers */
 	struct user_fpu_struct* u_fpstate;	/* Math Co-processor pointer */
 	unsigned long	magic;			/* identifies a core file */
 	char		u_comm[32];		/* user command name */