1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index a1e760150821..61d78fa03b1a 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -595,7 +595,7 @@ isdn_ppp_ioctl(int min, struct file *file, unsigned int cmd, unsigned long arg)
                         j = ipc->num / (sizeof(long) * 8);
                         i = ipc->num % (sizeof(long) * 8);
                         if (j < 8)
-                                protos[j] |= (0x1 << i);
+                                protos[j] |= (1UL << i);
                         ipc = ipc->next;
                 }
                 if ((r = set_arg(argp, protos, 8 * sizeof(long))))