diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index 2fde439543fb..3092a09d3eaa 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -1535,7 +1535,7 @@ sbni_setup( char  *p )
 		goto  bad_param;
 
 	for( n = 0, parm = 0;  *p  &&  n < 8; ) {
-		(*dest[ parm ])[ n ] = simple_strtol( p, &p, 0 );
+		(*dest[ parm ])[ n ] = simple_strtoul( p, &p, 0 );
 		if( !*p  ||  *p == ')' )
 			return 1;
 		if( *p == ';' ) {