diff --git a/sys/pc98/i386/userconfig.c b/sys/pc98/i386/userconfig.c
index a8ccfafe2a9..fc799979c37 100644
--- a/sys/pc98/i386/userconfig.c
+++ b/sys/pc98/i386/userconfig.c
@@ -46,7 +46,7 @@
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  **
- **      $Id: userconfig.c,v 1.47 1998/03/10 12:52:55 kato Exp $
+ **      $Id: userconfig.c,v 1.48 1998/03/31 09:37:44 kato Exp $
  **/
 
 /**
@@ -2394,7 +2394,7 @@ visuserconfig(void)
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *      $Id: userconfig.c,v 1.47 1998/03/10 12:52:55 kato Exp $
+ *      $Id: userconfig.c,v 1.48 1998/03/31 09:37:44 kato Exp $
  */
 
 #include "scbus.h"
@@ -2638,7 +2638,7 @@ parse_args(char *cmd, CmdParm *parms)
 	    continue;
 	}
 	if (parms->type == PARM_ADDR) {
-	    parms->parm.aparm = (void *)strtoul(cmd, &ptr, 0);
+	    parms->parm.aparm = (void *)(uintptr_t)strtoul(cmd, &ptr, 0);
 	    if (cmd == ptr) {
 	        printf("Invalid address argument\n");
 	        return 1;